february 1 2017 presentation - cusd80.com
TRANSCRIPT
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
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Gregor Mendel (1822-1884)
The Father of Genetics
©Fall2005,PflugervilleISD,7thGrade
GregorJohannMendel
▪Austrianmonk▪Studiedtheinheritanceoftraitsinpeaplants▪Developedthelawsofinheritance▪Mendel'sworkwasnotrecognizeduntiltheturnofthe20thcentury
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©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