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What did you do over break? What questions do you have about the sex linked, Multiple alelle problems?. Traits and Alleles.
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What did you do over break? • What questions do you have about the sex linked, Multiple alelle problems?
Traits and Alleles • What if Elmo and Zoe fell in love, got married and had a baby? What might their baby look like? With your team, come up with a list of as many traits and allele names as possible.
What is Elmo’s Genotype? • The Trait: Nose Color • Possible Phenotypes: • Pink = Dominant • Orange = Recessive • Genotype Key: • P – dominant • p – recessive Orange Nose!
What is Zoe’s Genotype? • The Trait: Nose Color • Possible Phenotypes: • Pink = Dominant • Orange = Recessive • Genotype Key: • P – dominant • p – recessive Pink nose!
Predicting an Outcome • What is the probability that Zoe will pass on the allele for a Pink nose? • Zoe’s genotype is: • Zoe’s heterozygous! Pp 1 P allele out of 2 possible alleles, so ½ or 50% chance that Zoe will pass on the allele for a pink nose.
Predicting an Outcome • What is the probability that Elmo will pass on an allele for an orange nose? • Elmo’s genotype is: • Elmo is homozygous! pp 2 p alleles out of 2 possible alleles, so 2/2 or 100% chance that Elmo will pass on the allele for an orange nose.
Predicting an Outcome • Can you predict ALL of the possible nose phenotypes Elmo and Zoe’s baby could have? X pp Pp
Predicting an Outcome • Can you predict ALL of the possible nose genotypes Elmo and Zoe’s baby could have? X pp Pp
Sesame Street Genetics Rosita Telly Zoe Elmo Abby Super Grover (aka Grover)