Traits and Inheritance

The Story of Paul and Tracy Johnson

Williams

JohnsonTracy Paul

Paul and Tracy Johnson

Paul and Tracy Johnson

Paul and Tracy Johnson

“Voices of Sickle Cell”

• What alarmed Paul and Tracy?

With your group:• Person with #1 will read aloud while…• Person #2 and #3 will read along.

Paul and Tracy Johnson

What is sickle cell anemia?

8,600,000

“What is sickle cell anemia?”

• What is sickle cell anemia?

With your group:• Person with #2 will read aloud while…• Person #1 and #3 will read along.

DNA Mapping

“There are some things you need to know.”

• Gene• Allele

• Probability• Genotype• Phenotype

With your group, match up the

vocabulary words that Dr. Hunt says we

need to know.

“There are some things you need to know.”

• Gene• Allele

• Probability• Genotype• Phenotype

“There are some things you need to know.”

1.Probability. 2. Allele3. Genes

4. Genotype5. Phenotype

DNA MappingS = No Sickle Cell

Anemia

s = Sickle Cell Anemia

Paul and Tracy Johnson

Ss Ss

Paul and Tracy Johnson

Paul and Tracy Johnson“What is the probability that our children will have

sickle cell anemia?”

Help Paul and Tracy find out the probability their children will have

sickle cell anemia.

Paul and Tracy Johnson

THURSDAY

Paul and Tracy Johnson

Paul and Tracy Johnson

Ss Ss

DNA MappingS = No Sickle Cell

Anemia

s = Sickle Cell Anemia

DNA Mapping

Allele = Type of Gene

What is a Spudoodle

?

Spudoodle

• Hair = Toothpick

• Mouth = Coins

• Eyes : Blue = Purple and White = Yellow

• Dorsal Spine = Popsicle Sticks

• Tail = Pipe Cleaner

• Ears = Popcorn/Cheese Puffs

• Legs = Pins(Tacks)

• Nose = Pins (Tacks)

Friday

Spudoodle

SpudoodleMost

Origninal Spudoodle

name Contest

Dominant and Recessive Traits

1. What is your Spudoodle?2. List the Spudoodle body parts that have traits controlled by simple

dominant/recessive genes.

4. Does the inheritance of the longest pair of chromosomes have any effect on Spudoodle eye color? Why?

5. What letters would a baby Spudoodle need to inherit from its parents for it to have red legs?

Does it make many different which letter came from the mother Spudoodle?

3. List the Spudooodle body parts that have traits controlled by incompletely dominant genes.

6. Is it possible for a Spudoodle having blue dorsal spines to have baby Spudooodle with white dorsal spines? Why or why not?

Inheritance of Traits

A Story of Two

Spudoodles

Mr. Spudoodle

Ms. Spudoodle

Toy Store

Mr. Spudoodle

Mr. & Mrs. Spudoodle

Mr. & Mrs. Spudoodle

Mr. & Mrs. Spudoodle

Mr. & Mrs. SpudoodleIf two Spudoodles in class had Spudoodle

children, determine the probability that they would have a certain

genotype and phenotype?

Mr. & Mrs. Spudoodle

Team 1 and Team 4

Team 2 and Team 5

Team 3 and Team 6

Team 7 and Team 9

Team 8 and Team Stiles

Mr. & Mrs. Spudoodle