Admit Ticket

Take notes on “Gregor Mendel: Great Minds” https://www.youtube.com/watch?v=GTiOETaZg4w

DUE TODAY

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CLASSWORK: Cell Processes and Microscope Quiz

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DUE TODAY

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CLASSWORK: Textbook Guided Reading and Study Worksheet on Mendel’s Work Pg. 55-60 (Binder)

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DUE 2/3/17

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CLASSWORK: Punnet Square Exercises (Binder) CLASSWORK: Bikini Bottom Genetics (TURN IN)

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Friday 2/3/17 *2ND HOUR ONLY* GUEST SPEAKER

DUE 2/6/17

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HOMEWORK: Student Weekly Grade Tracking #23

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DUE 2/6/17

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CLASSWORK: OPEN BINDER/NOTE TEST #3

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Cell History and Function

Quiz Review

Exit Ticket WORKSHEET(BINDER)

Textbook Guided Reading and Study worksheet on Mendel’s Work Page 55 - 60 (BINDER)

Cell Processes and Microscope

Quiz

https://blog.prepscholar.com/hubfs/body_testinprogress.gif?t=1484754694564http://cdn.tristro.net/catalog/883/full/188015.jpg

Photosynthesishttps://

www.youtube.com/watch?v=2kfb-

e6Y7as

Introduction to Photosynthesis

https://

www.youtube.com/

watch?v=eaACsEXAjhA

CellEnergy(PhotosynthesisandRespiration)Notes Energy: •Energyforlivingthingscomesfromfood.Originally,theenergyinfoodcomesfromthesun.

•Organismsthatuselightenergyfromthesuntoproducefood—autotrophs(auto=self)

Ex:plantsandsomemicroorganisms(somebacteriaandprotists)

•OrganismsthatCANNOTusethesun’senergytomakefood—heterotrophs

Ex:animalsandmostmicroorganisms

Photosynthesis: •Photosynthesisistheprocessbywhichtheenergyofsunlightisconvertedintotheenergyofglucose

•Photosynthesisoccursinthechloroplastsofplants

• Lightabsorbingcompoundisapigment—pigmentsabsorbsomewavelengthsoflightandreflectothers—thecoloroureyesseeisthecolorthatthepigmentreflects

•Chlorophyllisthepigmentinsidethechloroplasttheabsorbslightforphotosynthesis

Asthechlorophyllinleavesdecaysintheautumn,thegreencolorfadesandisreplacedbytheorangesandredsofcarotenoids.

Respiration https://

www.youtube.com/watch?

v=8B_64G2SI_8

•RespirationoccursinALLcellsandcantakeplaceeitherwithorwithoutoxygenpresent.

Respiration https://

www.youtube.com/watch?

v=VjEydFYr9tI

Mendelian Genetics

https://www.youtube.com/

watch?v=cWt1RFnWNzk

©Fall2005,PflugervilleISD,7thGrade

copyrightcmassengale

25

Gregor Mendel (1822-1884)

The Father of Genetics

©Fall2005,PflugervilleISD,7thGrade

GregorJohannMendel

▪Austrianmonk▪Studiedtheinheritanceoftraitsinpeaplants▪Developedthelawsofinheritance▪Mendel'sworkwasnotrecognizeduntiltheturnofthe20thcentury

26

©Fall2005,PflugervilleISD,7thGrade

GregorJohannMendel

▪Between1856and1863,Mendelcultivatedandtestedthousandsofpeaplants

▪Hefoundthattheplants'offspringretainedtraitsoftheparents

copyrightcmassengale 27

©Fall2005,PflugervilleISD,7thGrade

copyrightcmassengale

28

▪Mendelstatedthatphysicaltraitsareinheritedas“particles”

▪Mendeldidnotknowthatthe“particles”wereactuallyChromosomes&DNA

ParticulateInheritance

©Fall2005,PflugervilleISD,7thGrade

Whypeas,Pisumsativum?

▪Canbegrowninasmallarea▪Producelotsofoffspring▪Producepureplantswhenallowedtoself-pollinateseveralgenerations▪Canbeartificiallycross-pollinated

copyrightcmassengale 29

©Fall2005,PflugervilleISD,7thGrade

MendelandHisPeas

• Mendeltested7traits:1. Flowercolor2. Flowerposition3. Seedcolor4. Seedshape5. Podshape6. Podcolor7. Plantheight

http://www.fieldmuseum.org/exhibits/traveling_mendel.htm

©Fall2005,PflugervilleISD,7thGrade

MendelandHisPeas

• Mendelcrossedflowersthatweretrue-breedingforeachcharacteristic.

• Hecrossedapurple(PP)floweredplantwithawhite(pp)floweredplant.(ParentGeneration)

http://biology.kenyon.edu/courses/biol114/KH_lecture_images/Mendel/Mendel.html

©Fall2005,PflugervilleISD,7thGrade

MendelandHisPeas

• Thefirstgeneration(F1)ofplantsallhadpurpleflowers.

• Wheredidthewhitecolorgo??

(Pp)

(Pp)

(Pp) (Pp)

PurpleParent(PP)

©Fall2005,PflugervilleISD,7thGrade

MendelandHisPeas

• Mendeltooktwoofhisfirstgeneration(F1xF1)purplefloweredplantsandcrossedthemtogether.

• Inthesecondgeneration(F2)hehad3purplefloweredplants,and1whitefloweredplant.

(PP) (Pp)

(Pp) (pp)

PurpleParent(Pp)

©Fall2005,PflugervilleISD,7thGrade

MendelandHisPeas

• Mendelnoticedinthefirstgeneration,allofthewhiteflowersseemedtodisappear.

• Hecalledthisarecessivetrait.• Thewhitecolorfadedintothebackgroundatfirst.

• Itshowedupinthenextgenerationwhenhepollinatedtheflowers.

©Fall2005,PflugervilleISD,7thGrade

MendelandHisPeas

• Thecolor(purple)thatseemedtomaskovertherecessivecolorwasnamedthedominanttrait.

©Fall2005,PflugervilleISD,7thGrade

MendelandHisPeas

• Mendelwasresponsibleforfiguringoutthateachplantcarriedtwosetsofinstructionsforeachcharacteristic(onefromthe“mom”andonefromthe“dad”).

• Likemanyscientists,hisworkwasnotaccepteduntilafterhisdeath.

©Fall2005,PflugervilleISD,7thGrade

Let’sReview

1.Ifyoucrossedatrue-breedingblackrabbitwithatrue-breedingwhiterabbit,alloftheoffspringwouldbeblack.Whichtraitisdominantinrabbits:blackfurorwhitefur?

2.Whichtraitisrecessive?

©Fall2005,PflugervilleISD,7thGrade

Answer

• Thetraitforblackfurisdominantoverthetraitforwhitefur.Thewhitefurtraitisrecessive.

http://www.buckeyevalleyfarms.freeservers.com/photo.html

(Bb)(Bb)

(Bb) (Bb)

BlackRabbit(BB)

©Fall2005,PflugervilleISD,7thGrade

Google’stributetoMendelJuly2011

©Fall2005,PflugervilleISD,7thGrade

ScienceHumor

©Fall2005,PflugervilleISD,7thGrade

MendelandHisPeas

Vocabulary1. Heredity-thepassingoftraitsfrom

parenttooffspring.2. Self-pollinate-Aplantisoftenableto

pollinatebyitselfbecauseitcontainsboththemaleandfemalereproductivestructures.Thisonlyrequires1parent.

©Fall2005,PflugervilleISD,7thGrade

MendelandHisPeas

3.True-breeding-alloftheoffspringwillhavethesametraitastheparentwhenself-pollinated

4. First-generation-theveryfirstsetofoffspringfromtwoparents

5. Dominanttrait-thetraitobservedwhenatleastonedominantalleleforacharacteristicisinherited

©Fall2005,PflugervilleISD,7thGrade

MendelandHisPeas

6.Recessivetrait-atraitthatisapparentonlywhentworecessiveallelesforthesamecharacteristicareinherited

7. Genes-asegmentofDNAthatcarrieshereditaryinstructionsandispassedfromparenttooffspring

8. Alleles-multipleformsofthesamegene

©Fall2005,PflugervilleISD,7thGrade

MendelandHisPeas

9. Genotype-anorganismsinheritedcombinationofalleles

10.Phenotype-anorganismsinheritedappearance

HAVE A WONDERFUL

DAY!http://media1.nordiclifescience.org/2014/08/dna-structure.jpg