INHERITANCE UNIT

DOO

R

PROJECTOR

FRONT TABLE

LAB TABLE

Period 1

LAB TABLE

LAB TABLE LAB TABLE

Lucas

Katherine

Dennis

Zachary

Corie

Cheyenne

Marie

Nathanael

Brent Miles

Robert

Jessica H.

Christian

Justin

AnnaArnoldo

Markel

Jessica P.

Javier

Deshawn

Kambria

Blake

Tyler

DOO

R

PROJECTOR

FRONT TABLE

LAB TABLE

Period 2

LAB TABLE

LAB TABLE LAB TABLE

Deja

CharlesRosario

Havanaa

Kenny

Steven

Shakira

Jesus

Daymontria

Natalie

Adrianne

ClaraAustin

Breonna

HeatherMichael

Tyler

Hasret

Cheyenne

Gabriel

Vishawn

Chelsea

DOO

R

PROJECTOR

FRONT TABLE

LAB TABLE

Period 4

LAB TABLE

LAB TABLE LAB TABLE

Dejon

TerresiaAlejandro

Christian

Herschel

Elizabeth

Donovan

Crescencia

Ariadne

Jacob

Rameshion

KaylieBrevin

Jonathan

Devin

John

Kaylah

Celestial

Destiny

DOO

R

PROJECTOR

FRONT TABLE

LAB TABLE

Period 5

LAB TABLE

LAB TABLE LAB TABLE

Malyk

DaltonAndrew

JonathanGarrison Trenten

Le

Nick

RehemaEzra

JoenikaMatthew

Phillip

Detarius

Amber

Sheyanne

John

David

Austin

Bell Ringer – 02/24 What are three things that I should

know about you? (Sports? Music? Clubs/activities?)

Learning Target: We will understand the classroom rules and procedures.

Closure task: I can explain the procedure for entering the classroom.

Agenda Syllabus & Procedures Intro to New Unit Baby mice handout Begin “Gifts from your parents”

+

A little bit about me!

A little bit about me!

A little bit about me!I went to a college called Middlebury College

A little bit about me!

A little bit about me!

+ Classroom Procedures

Talking and speaking in class will happen during specific times determined by our activity. I will direct you of the appropriate talking level.

Electronic devices will only be used when directed by Mr. Lambert. If I see it, I will take it.

Talking in class and electronics

+ Classroom Rules

1. Keep all hands, feet, legs and objects to yourself.

2. Follow directions the first time they are given.

3. Stay in your assigned area unless given permission to move.

4. Use appropriate and positive language.5. Stay on task & keep your head up!

What do I have to do to be successful?

+My Classroom Expectations

1. Treat all people with RESPECT.2. Do not talk while I am talking or while

a classmate is talking3. Actively participate and ask

questions.4. Follow all procedures.5. Give your best effort.

What do these look like?

+ Consequences

1. Warning2. Private Warning3. Private Conference4. Parent Contact5. Referral*The order of consequences may be

changed based upon the severity of the behavior. This is up to the discretion of the teacher.*

What happens when I do not meet expectations?

When I need your attention

1. I will say “I need your attention please”

2. You should stop talking, turn around, and face me.

+ Classroom Procedures

1. Say hello to me! Give me a handshake/fist-bump/hi-five. Enter quietly.

2. Pick up your notebook and folder from the appropriate basket.

3. Pick up your Bell Ringer & any handouts on the back table.

4. Find your assigned seat and complete the bell-ringer activity.

5. Eyes on me when you are finished.

Entering the classroom

+ Classroom Procedures

1. At 5 minutes to the end of class, you will stop your activities and work on the Exit Slip.

2. When you are finished with your Exit Slip put your notebook & folder back in the crate (or your book bag).

3. Place your Bell Ringer sheet in the turn in tray.

4. While at your desk, clean up your area and pack up your materials. Pick up any garbage on the floor.

5. Remain in your seat and wait quietly for dismissal by me, not the bell.

Exiting the classroom

+ Tour of classroom

Look around the classroom and find the following items: Pencil Sharpener

DO NOT sharpen pencils while I am talking

Hand-in tray Graded work tray Make-up work folders

+ Bathroom Passes

No students will be allowed to use the restroom unless it is an EMERGENCY

+

What is inheritance?? Big Ideas we will cover in this

new unit: What is it that is being passed on? How is it that we look like people in

our families? How is it that we look different than

our siblings?

Baby Mice Handout Read the intro and choose a friend to

agree with.

Explain WHY you agree with them

Similarities….Differences Think about your family. Do you look

like your parents/siblings? How is it that we look like people in our

families? How is it that we look different than our

siblings?

http://www.bbc.com/future/story/20130712-genetic-portraits-of-families

Begin “Gifts from Your Parents” Page 418-419

Exit Slip Answer these questions:

1. What is the procedure for entering the classroom? What do you need to pick up?

2. What is it that is being passed on?3. How is it that we look like people in our

families?4. How is it that we look different than our

siblings?How did you do? Rate yourself!

I can understand the classroom rules and procedures.

I can explain the procedure for entering the classroom.

GIFTS FROM YOUR PARENTS. PEDIGREES

Bell Ringer – 02/25 What is an acquired trait? What is an inherited trait?

Learning Target: We will define and give an example of a carrier.

Closure task: I will complete the pedigree practice

Agenda Finish reading “ Gifts from your parents” Videos about the family Analysis questions

From the reading What is a carrier? Why did the czarina

believe that she was responsible for her son’s disease?

Russian Royal Family http://

www.youtube.com/watch?v=2cjcD8KvXFE&list=PL6A6DAC2E41D8C1B0

http://www.youtube.com/watch?v=MZ4bQUUtt8Y&list=PL6A6DAC2E41D8C1B0

What is a pedigree?

• A tool to track how traits are inherited in a family

Pedigrees A pedigree is a diagram of family relationships

that uses symbols to represent people and lines to represent genetic relationships. These diagrams make it easier to visualize relationships within families, particularly large extended families. Pedigrees are often used to determine the mode of inheritance (dominant, recessive, etc.) of genetic diseases

Males = squares Females = circles Colored in = affected Half colored in = Carrier – they carry the gene

but do not have the disease

Interpreting Pedigrees How many males are there? How many females are there? How many marriages are

there? How many children did each

couple have? How many generations are

present? How many individuals are

affected with the disease? How many are carriers of the

disease? Who is more likely to have

the disease?

Interpreting Pedigrees How many males are there? How many females are there? How many marriages are

there? How many children did each

couple have? How many generations are

present? How many individuals are

affected with the disease? How many are carriers of the

disease? Who is more likely to have

the disease?

What do you notice about… Who is affected by hemophilia in the

pedigree? Who is a carrier for the disorder?

Analysis Questions pg 418 Answer the questions in your notebooks Question 2C:

Inherited trait - You get this from your parents!

Acquired trait - You get this during your life!

Pedigree WorksheetFill out the worksheet individually

Pedigree WorksheetWhen finished, pass your groups papers to the group next to you.

Take a classmate’s worksheet and write your name on the bottom right corner.

Grade your classmate’s paper

Game of Chance Pg 420 Answer question 1 independently Share your answer with your partner Be prepared to share with the class

Step 2A Make a prediction of how many heads & tails you will get

Create a Data Table for Step 2

Total Heads Total Tails

Answer questions Pg 420-421 Question 2C – role of chance Questions 3, 4, & 5

Back to the big question!How is it that we look different than our siblings?

Analysis question (pg. 422)Answer analysis question #1 with a partner

Exit SlipDraw a pedigree of your family, starting with your grandparents. Label with the names of your family members.

How did you do? Rate yourself!I can define and give an example of a carrier..

I can complete the pedigree practice.

GAME OF CHANCE

Bell Ringer – 02/26 What kind of information can you track

with a pedigree?

Learning Target: We will describe how chance plays a role in inheritanceClosure task: I can calculate probabilities related to inheritance

Game of Chance Pg 420 Answer question 1 independently Share your answer with your partner Be prepared to share with the class

Step 2A Make a prediction of how many heads & tails you will get

Create a Data Table for Step 2

Total Heads Total Tails

Rabbit matingTrial # of

offspringMales Females % males

Vs. % female

1 10 6 4 60%/40%

2 10 4 6 40%/60%

3 10 7 3 70%/30%

Trial # of offspring

Males Females % malesVs. % female

1 600 279 321 46.5%/53.5%

2 600 296 304 49.3%/50.7%

3 600 316 284 52.6%/47.3%

Discussion Is there a benefit to a larger sample

size?

Are the results generally closer to 50% in smaller or larger sample sizes?

When does chance have a bigger effect on the outcome? Smaller or larger sample size?

Blue People of Kentucky

Back to the big question!How is it that we look different than our siblings?

Analysis question (pg. 422)Answer analysis question #1 with a partner

What is a gene? Please complete the before watching

side of the anticipation guide.

What is a gene? http://www.youtube.com/watch?v=5MQd

XjRPHmQ

Fill out anticipation guide after watching section

Patterns of Inheritance Read pg 427 and observe the pictures –

what is the difference between pictures a and b?

Inheritance of One Trait pg 428 Complete Processes and Procedures 1-6 Homozygous: If the beans are the same

color Heterozygous: If the beans are two

different colors The beans represent genetic informationTrial # Bean #1

ColorBean #2

ColorHomozygo

us or heterozyg

ous?

Straight or floppy ears

1234

Record the trait (straight/floppy ears) of your bean combinations

• Which bean color is more influential??

• Why?

Which trait is dominant?

Which trait is recessive?Each bean represents

genetic information from your parents.This information is represented with letters:• S = dominant trait

(straight ears)• s = recessive trait

(floppy ears)

Quick write : Question 7a Did one bean color (which corresponds

to one piece of inherited genetic information) have a greater influence in determining the ear trait than the other bean color?

Exit Slip If a family has 4 sons, what is the chance

that their next child will be a daughter? What is the difference between a

dominant trait and a recessive trait?

How did you do? Rate yourself!I can describe how chance plays a role in

inheritanceI can calculate probabilities of inheritance.

PATTERNS OF INHERITANCE PART A

Bell Ringer – 2/27 If a family has 4 daughters, what is the

chance that their next child will be a daughter?

What does the information in genes code for?

Learning Target: We will describe how traits are inherited.Closure task: I can complete my personal glossary.

Agenda Review patterns of inheritance activity

part A Phenotype/genotype essay Personal Glossary Part B patterns of inheritance

Inheritance of One Trait pg 428 Complete Processes and Procedures 1-6 Homozygous: If the beans are the same

color Heterozygous: If the beans are two

different colors The beans represent genetic informationTrial # Bean #1

ColorBean #2

ColorHomozygo

us or heterozyg

ous?

Straight or floppy ears

1234

Record the trait (straight/floppy ears) of your bean combinations

• Which trait is more influential??

• Why?

Which trait is dominant?

Which trait is recessive?Each bean represents

genetic information from your parents.This information is represented with letters:• S = dominant trait

(straight ears)• s = recessive trait

(floppy ears)

Quick write : Question 7a Did one bean color (which corresponds

to one piece of inherited genetic information) have a greater influence in determining the ear trait than the other bean color?

Personal Glossary Complete your personal glossary as you

do your reading!

Phenotype and Genotype Page 492 Complete the reading close reading style

Scan for important words, highlight, make notes in margins

Write a one sentence summary of each paragraph!

Read through once As you read fill out the personal glossary

Phenotype and Genotype Discussion

Other than genetics, what affects phenotype? How?

How is genetic information stored? How is this stored information organized in the cells?

What role do alleles play in sexual reproduction?

Explain a simple inheritance pattern.

Concept Map using the essay Phenotype & Genotype

Fill in the concept map using the information from the essay independently.

When cued, work with a partner to fill in blanks

As a class discuss.

Exit Slip What is the difference between a

phenotype and genotype?

How did you do? Rate yourself!I can describe how traits are inherited.

I can complete my personal glossary.

Bellringer If you have a heterozygous pair, what is

the probability you will give the white bean?

What is the probability you will give the brown bean?

Standard topic: Inheritance Learning Target: #3,11, 15 Closing Task: I will complete a concept

map using vocab terms

PATTERNS OF INHERITANCE PART B

Bell Ringer – 03/02 Define genotype and phenotype and

explain how they are related.

Learning Target: We will define genotype, phenotype, allele, and independent assortmentClosure task: I can complete a genetics vocab card sort.

Phenotype and Genotype Discussion

Other than genetics, what affects phenotype? How?

How is genetic information stored? How is this stored information organized in the cells?

What role do alleles play in sexual reproduction?

Explain a simple inheritance pattern.

Phenotype vs Genotype Phenotype – observable traits Genotype – genetic makeup of a cell

Analogies:• Blueprint

Building• Recipe Cake

Chromosomes Chromosome – DNA that has been

tightly coiled

Alleles Allele – alternative forms of the same

gene

Principle of Dominance

Principle of Independent Assortment

States that genes sort independent of one another.

For example: Floppy eared white rabbit mated with a straight eared brown rabbit can have a

floppy eared brown baby rabbit

Concept Map using the essay Phenotype & Genotype

Fill in the concept map using the information from the essay independently.

When cued, work with a partner to fill in blanks

As a class discuss.

Vocab Card Sort Review terms Game! We will split you into groups. The idea is

to match the definition to the term. When you think you have it check it against your personal glossary.

Part B – Inheritance of two traits. Pg. 429 - Read the intro Examine the tables in the need to know

box. These are the results of a cross that

follows two traits (ear type and gender). Answer question 4 a and b in your

notebooks Class discussion

Top 8 Strategies for the ACT Science Test

Read through the instructions carefully, to orient yourself

Don't worry about details on your initial read-through

Always refer to the passage and the question-stem before selecting an answer

In order to read most graphs and tables, you have to do four things: determine what's being represented, determine what the axes represent, take note of units of measurement, and look for trends in the data

Top 8 Strategies for the ACT Science Test

When reading data, you should be on the lookout for the three characteristic patterns or trends: extremes (maximums and minimums), critical points (or points of change), and direct or inverse variation (or proportionality)

If time is a problem, focus on the questions that require analyzing data from just a single table or graph

Don't waste time trying to figure out which scientist is "right." Just worry about understanding their different viewpoints

Don't panic if you don't understand both scientists' positions. Many questions will hinge on just one of the arguments.

Test Layout The Science Reasoning Test has seven

science passages: 3 Data Representation passages 3 Research Summaries passages 1 Conflicting Viewpoints passage

KAPLAN Video – Conflicting Viewpoints http://www.kaptest.com/College/ACT/About-the-AC

T/act-science-test.html

1. Identify what’s being studied.2. Figure out the opinions.

Determine what is different about each point of view. 3. Circle any relevant data.

https://www.youtube.com/watch?v=E5ZuY1yB3XY

Practice questions http://

www.actstudent.org/sampletest/science/sci_01.html

Data representation questions https://

www.youtube.com/watch?v=EiUK_JewKPM

Here’s a summary of the process for answering questions:

Read the question and, if necessary, restate it in your own words so you understand what it is asking.

Refer back to the passage. Formulate an answer in your own words,

without looking at the answer choices. Match your answer to the choices

provided.

Exit Slip What is an allele? How does the principle of

independent assortment leads to genetic variation?

How did you do? Rate yourself!We will define genotype, phenotype, allele,

and independent assortment.

Closure task: I can complete a genetics vocab card sort.

ACT DAY!

Bell Ringer – 03/03 If two dogs are bred, one has spots and

blue eyes and the other is solid brown and has brown eyes, is it possible to get a puppy with spots and brown eyes? Why or why not?

What is the name of the principle that addresses this?Learning Target: We will demonstrate how

genes are inherited independently.

Closure task: I can complete the Genetics with a smile worksheet.

Agenda Genetics with a smile TED Talk Brain Games/NOVA

“Genetics with a Smile” handout Read the directions carefully.

TED Talk http://

www.ted.com/talks/jack_horner_building_a_dinosaur_from_a_chicken

NOVA “Cracking your genetic code” http://

www.amazon.com/gp/product/B007RKRE14/ref=dv_dp_ep6

Brain Games – Addiction https://

www.youtube.com/watch?v=QAnN8r8CpJk

Exit Slip How does the “Genetics with a Smile”

activity demonstrate independent assortment?

How did you do? Rate yourself!We will demonstrate how genes are inherited

independently.I can complete the Genetics with a smile worksheet.

GENETICS PRACTICE & CASE OF TWO GENETIC DISORDERS

Bell Ringer – 03/09 Predict the phenotype for these genotypes: Straight hair (S) is dominant to curly hair

(s). What is the phenotype? SS=__________________ Ss=___________________ ss=___________________Learning Target: We will identify the mode of

inheritance of common genetic disorders.

Closure task: I can identify how Huntington's disease & cystic fibrosis are inherited

Agenda Genetics practice WS Case of two genetic disorders

Genetics practice worksheet Work on this individually for 10 minutes Then compare your answers to your

neighbor

Case of two genetic disorders pg 496

You will be working in pairs to do this activity.

One of you will read the info on Huntington’s disease and the other will read the info on Cystic fibrosis. Take notes on the disorders and then share with your partner.

Copy this note taking sheet into your notebooks.

Huntington’s disease detailsWhat kind of disorder is it? Recessive or dominant?

Who gets it?Is there a

treatment?

Cystic Fibrosis details

What are the symptoms?What kind of disorder is it?Is it recessive or dominant?

Shared characteristics

Fill this part in after you have taken notes and shared

Analysis questions pg 430 #1-4 Complete these questions with your

partner

Video! Eye Color

https://www.youtube.com/watch?v=kaWoN4PmkZw

Review key terms card sort Same card sort as last time! This time we will time it. First team done gets bonus points!

Exit Slip Which disease (Huntington's disease or

cystic fibrosis) are you more likely to inherit?

Why?

How did you do? Rate yourself!I can identify the mode of inheritance of

common genetic disorders. I can identify how Huntington's disease & cystic fibrosis are inherited

QUIZ & BEGIN MEIOSIS

Bell Ringer – 03/10For each phenotype, give the genotypes that are possible for Patrick.A tall head (T) is dominant to short (t).Tall = _______________ Short = _______________

Pink body color (P) is dominant to yellow (p).Pink body = ________Yellow body = ________

Learning Target: We will review key terms for the quiz. Closure task: I can complete the inheritance quiz.

Agenda My Parents Wrecked My Favorite Gene Review vocab words Concept Map on personal glossary Quiz

My parents wrecked my favorite gene

Phenotype vs Genotype Phenotype – observable traits Genotype – genetic makeup of a cell

Analogies:• Blueprint

Building• Recipe Cake

Chromosomes Chromosome – DNA that has been

tightly coiled

Alleles Allele – alternative forms of the same

gene

Principle of Dominance

Principle of Independent Assortment

States that genes sort independent of one another.

For example: Floppy eared white rabbit mated with a straight eared brown rabbit can have a

floppy eared brown baby rabbit

Principle of independent assortment

Review key terms card sort Same card sort as last time! This time we will time it. First team done gets bonus points!

Concept Map Fill in the concept map using the

information from the essay independently.

When cued, work with a partner to fill in blanks

As a class discuss.

VideoCan you genetically enhance yourself? https://

www.youtube.com/watch?v=N-48RVaqZck

Quiz time!

Exit Slip How well did you understand the

material from this unit? What is one concept that you still do not

understand?

How did you do? Rate yourself!I can review key terms for the quiz.

I can complete the inheritance quiz.

MEIOSIS

Bell Ringer – 3/11

Learning Target: We will explain the advantages of sexual reproduction through meiosisClosure task: I can draw the stages of meiosis.

Do all of the cells in our bodies have the same number of chromosomes?

Agenda Why do sexual reproduction? Intro to Meiosis Draw the steps of meiosis

Big picture questions What is the benefit of sexual

reproduction? Why not just duplicate ourselves?

Asexual reproduction Single-celled

eukaryotes yeast (fungi) Protists

Paramecium Amoeba

Simple multicellular eukaryotes Hydra

What are thedisadvantages of

asexual reproduction?What are the advantages?

budding

budding

https://www.youtube.com/watch?v=hXaswpUjK-M

Turn and Talk What are the disadvantages of

asexual reproduction? What are the advantages of sexual

reproduction?

Discussion What is sexual reproduction?

Sexual reproduction creates variability

Sexual reproduction allows us to maintain both genetic similarity & differences.

Baldwin brothers

JonasBrothers

Martin & Charlie Sheen, Emilio Estevez

Variation from random fertilization

Sperm + Egg = ? any 2 parents will produce a zygote

with over 70 trillion (223 x 223) possible diploid combinations

Variation!Black & White twins https://

www.youtube.com/watch?v=8bB9PPjp04o

https://www.youtube.com/watch?v=vsEBYjaAnF0

Turn and Talk What contributes to the fact that we look

different than our siblings?

How about the rest of us? What if a complex multicellular

organism (like us) wants to reproduce? joining of egg + sperm

46 46+ 92

egg sperm zygote

What if we did, then….

Doesn’t work!

mitosiszygote

Putting it all together…

23

2346

egg

sperm

46meiosis 46

23

23

fertilizationdevelopment

meiosis fertilization mitosis + development

4646

4646

46

4646 46

gametes

Homologous chromosomes Paired chromosomes

both chromosomes of a pair carry “matching” genes

control same inherited characters homologous = same information

diploid2n

2n = 4

single stranded homologous

chromosomes

double strandedhomologous chromosomes

Sister chromatids: DRAW

Human female karyotype

46 chromosomes23 pairs

Human male karyotype

46 chromosomes23 pairs

How do we make sperm & eggs?

Must reduce 46 (diploid) chromosomes 23 (haploid) must reduce the number of chromosomes by half

23

2346

egg

sperm

46meiosis 46

fertilization

23

23

gametes

zygote

Which type of cells does Meiosis occur in?

Called Gametes

Haploid23

Chromosomes

The Reproductive System: Produces, stores, nourishes, and releases sex cells.

Copyright © 2010 Ryan P. Murphy

Sperm: Male sex cell (gamete)

Egg (Ovum): Female sex cell.

Fertilization: The joining of the egg and the sperm. The sperm and egg contain genetic

information that will allow this one cell to multiply into trillions.

Copyright © 2010 Ryan P. Murphy

Meiosis: Cell division that produces gametes (reproductive cells).

Copyright © 2010 Ryan P. Murphy

Meiosis: Cell division that produces reproductive cells.

Copyright © 2010 Ryan P. Murphy

Meiosis: Cell division that produces reproductive cells.

Copyright © 2010 Ryan P. Murphy

Meiosis: Cell division that produces reproductive cells.

Copyright © 2010 Ryan P. Murphy

Meiosis: Cell division that produces reproductive cells.

Copyright © 2010 Ryan P. Murphy

Meiosis: Cell division that produces reproductive cells.

Copyright © 2010 Ryan P. Murphy

Meiosis: Cell division that produces reproductive cells.

Copyright © 2010 Ryan P. Murphy

Meiosis: Cell division that produces reproductive cells.

Copyright © 2010 Ryan P. Murphy

Meiosis: Cell division that produces reproductive cells.

Copyright © 2010 Ryan P. Murphy

Meiosis: Cell division that produces reproductive cells.

Copyright © 2010 Ryan P. Murphy

Exit Slip What is the primary advantage of sexual

reproduction? Draw and label homologous

chromosomes & sister chromatids.

How did you do? Rate yourself!We will explain the advantages of sexual

reproduction through meiosis

I can draw the steps of meiosis.

MEIOSIS STAGES

Bell Ringer – 3/12 What is the primary advantage of sexual

reproduction? Draw and label homologous

chromosomes & sister chromatids.

Learning Target: We will describe each stage of meiosis.

Closure Task: I can draw the steps of meiosis.

Agenda Fertilization video Draw steps of meiosis

Video! Fertilization

https://www.youtube.com/watch?v=_5OvgQW6FG4

Follow along on pg 500 We will walk through the stages of

meiosis and you will draw along in your notebooks.

Before we begin…

Each chromosome duplicates itself to form sister chromatids

Prophase 1 Homologous chromosomes pair

up Crossing over occurs – pieces

of homologous chromosomes switch places

Metaphase 1 Each pair of homologous

chromosomes lines up in the middle of the cell

Anaphase 1Each pair of homologous chromosomes are split up and pulled to opposite sides

Telophase 1Cell splits into two cells

Metaphase 2Chromosomes (sister chromatids) line up in the middle

Anaphase 2Sister chromatids are separated

Telophase 2Cells divide into two

In summary… One diploid cell produces four

haploid cells (gametes) Meiosis makes sex cells

(sperm/eggs) Each gamete has a different

combination of genes

Remember this!!!PMATMAT

Overview of meiosisI.P.M.A.T.P.M.A.T

interphase 1 prophase 1 metaphase 1 anaphase 1

telophase 1

prophase 2metaphase 2anaphase 2telophase 2

2n = 4

n = 2

n = 2

n = 2

Meiosis 1 & 2

Meiosis video https://

www.youtube.com/watch?v=rqPMp0U0HOA

Exit Slip During which stage does

crossing over occur? If two diploid cells go through

meiosis, how many gametes (haploid cells) would they produce?

How did you do? Rate yourself!We will describe each stage of meiosis.

I can draw the steps of meiosis.

MEIOSIS POSTER

Bell Ringer – 3/13 How does meiosis increase the

variability of sexual reproduction? Think Prophase 1…

Learning Target: We will determine the distribution of alleles during meiosis.

Closure Task: I can trace a set of alleles through meiosis

Meiosis quiz Monday!

Agenda Meiosis video Meiosis interactive activities Meiosis poster – tracking alleles Meiosis analysis questions

Meiosis videos/activities Meiosis: Creating sex cells interactive CD

Overview of meiosis

Draw overview of meiosis on board

Meiosis Poster Complete individually Fold legal size paper into eight Use your checklist to make sure you

include everything you need!

C c

w W

C = cream eyec = tan eyeW = white wingw = spotted wing

Poster analysis – answer in notebook

1. What is the genotype of each sperm for eye color and wing color?

2. What other genotypes are possible?3. At what point would you change how

you positioned your chromosomes to obtain the other possible genotypes?

Principle of segregation The two alleles for each gene separate

during meiosis Gametes have equal chance of inheriting

either allele (but NOT both)

Exit Slip What is the main purpose of

meiosis? If a cell with the genotype BbGg

goes through meiosis, what are the different possible genotypes of the gametes?

How did you do? Rate yourself!We will determine the distribution of alleles

during meiosis.I can trace a set of alleles through meiosis.

Meiosis quiz Monday!

Bell Ringer – 3/16 What is the main purpose of

meiosis? If a cell with the genotype BbGg goes

through meiosis, what are the different possible genotypes of the gametes?

Learning Target: We will analyze the distribution of alleles during meiosis.

Closure Task: I can ace the quiz!

Meiosis quiz!

ESD today for phenotype/genotype

essayESD Wednesday for

Meiosis

Agenda Finish meiosis poster Poster analysis questions Meiosis card sort Meiosis quiz

Finish Meiosis Poster Complete individually Fold legal size paper into eight Use your checklist to make sure you

include everything you need!

C c

w W

C = cream eyec = tan eyeW = white wingw = spotted wing

Poster analysis – answer in notebook

1. What is the genotype of each sperm for eye color and wing color?

2. What other genotypes are possible?3. At what point would you change how

you positioned your chromosomes to obtain the other possible genotypes?

Law of segregation The two alleles for each gene separate

during meiosis Gametes have equal chance of inheriting

either allele (but NOT both)

Nondisjunction•  failure of homologous chromosomes or

sister chromatids to separate properly during cell division

Sexual reproduction introduces genetic variation genetic recombination

independent assortment of chromosomes random alignment of homologous chromosomes in Metaphase

1 crossing over

mixing of alleles across homologous chromosomes random fertilization

which sperm fertilizes which egg? Driving evolution

providing variation for natural selection

The value of sexual reproduction

metaphase1

Repeatafter me!

I can’thear you!

2nd division of meiosis separates sister chromatids

1st division of meiosis separates homologous pairs

Double divisionof meiosis

DNA replication

Meiosis 1

Meiosis 2

Steps of meiosis Meiosis 1

prophase 1 metaphase 1 anaphase 1 telophase 1

Meiosis 2 metaphase 2 anaphase 2 telophase 2

2nd division of meiosis separates sister chromatids(1n 1n)* just like mitosis *

1st division of meiosis separates homologous pairs(2n 1n)“reduction division”

Meiosis card sort

Exit Slip What is one thing you fully

understand about meiosis? What is one thing that you are

still confused about?

How did you do? Rate yourself!We will analyze the distribution of alleles

during meiosisI can ace the quiz!

Bell Ringer – 3/16 What is the acronym for

remembering the stages of meiosis? What is the difference between

Metaphase 1 and Metaphase 2?

Learning Target: We will describe the process of meiosis.

Closure Task: I can ace the quiz!

Meiosis quiz! ESD Wednesday for Meiosis

Agenda Meiosis manipulatives Meiosis final review Meiosis quiz Video on Mendel’s pea plants

Meiosis manipulatives Follow along with me as I demonstrate

the stages of meiosis.

Nondisjunction•  failure of homologous chromosomes or

sister chromatids to separate properly during cell division

Repeatafter me!

I can’thear you!

2nd division of meiosis separates sister chromatids

1st division of meiosis separates homologous pairs

Double divisionof meiosis

DNA replication

Meiosis 1

Meiosis 2

Repeatafter me!

2n = 4 single

strandedMeiosis 1

1st division of meiosis separates homologous pairs

2n = 4double

strandedprophase 1

tetrad

synapsis

1n = 2double

stranded

telophase 1

2n = 4double

strandedmetaphase 1

I can’t hear you!

reduction

Meiosis 2 2nd division of meiosis

separates sisterchromatids

1n = 2double

strandedmetaphase 2

1n = 2single

stranded

telophase 2

prophase 2

1n = 2double

stranded

What doesthis division

look like?

4

Quiz time!

Mendel’s pea plants video Mendel’s peas part 1 Mendel’s peas part 2 Mendel’s peas part 3 Mendel’s peas part 4 Mendel’s peas part 5 Mendel’s peas part 6

Exit Slip What is one thing you fully

understand about meiosis? What is one thing that you are

still confused about?

How did you do? Rate yourself!We will describe the process of meiosis

I can ace the quiz!

Exit Slip What did Mendel contribute to

our knowledge of genetics?

How did you do? Rate yourself!We will describe the process of meiosis

I can ace the quiz!