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 “Stronger” trait  Will show as long as gene is present  Represented by capital letter (B)

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Presentation on theme: " “Stronger” trait  Will show as long as gene is present  Represented by capital letter (B)"— Presentation transcript:

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2  “Stronger” trait  Will show as long as gene is present  Represented by capital letter (B)

3  “Weaker” trait  Needs to have 2 to show up  Represented by lowercase letter (b)

4  What YOU look like  Example: roller, non-roller, red hair, non-red hair

5  What the genes look like (letters of genes)  Example: Rr, RR, rr

6  2 of the same alleles (genes)  Example: RR, rr

7  1 of the same alleles (genes)  Example: Rr

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11 13 Homozygous Dominant = TT

12 (Homozygous) Recessive = tt Heterozygous= Tt

13  Likelihood that an event will happen  Used to predict in genetics

14 ALBINO ANIMALS!

15 Animals with no pigment Lack of color in eyes allows to see through to blood vessel = red eyes

16 Some “normal” animals carry the albinism gene (a) Must have 2 recessive genes for albinism (aa)

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40 Now it’s time for PUNNET SQUARES!

41  Chart used to show possible gene combinations

42 Glue in the small piece of paper you were given in the remaining space!

43 Normal Squirrel Albino Squirrel Phenotype: Normal Genotype: AA or Aa Phenotype: Albino Genotype: aa x

44 AA a a AaAa AAaa Chances: 100% not albino 0 % albino

45 Aa a a Aaaa Aaaa Chances: 50% not albino 50 % albino

46 Aa A a AAAa Aaaa Chances: 75% not albino 25% albino

47 Heterozygous Tongue Roller Phenotype: Roller Genotype: Tt Heterozygous Tongue Roller Phenotype: Roller Genotype: Tt

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49 Homozygous Tongue Roller Phenotype: Roller Genotype: TT Homozygous Tongue Roller Phenotype: Roller Genotype: TT

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