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Unformatted text preview: eathers 50% white feathers CoDominance This is a Roan horse. If you look closely, you can see he has two distinct colors of hair – reddish and white. CoDominance Make a Punnett Square showing the parental genotypes of the Roan Horse.
Use R for red and W for white Remember: CoDominance – Both alleles Expressed Multiple Alleles
Multiple Alleles *Remember that each individual has 2 alleles for each trait.
**BUT – there can be more than 2 types of alleles in a population This is usually the result of a mutation
Mutation: ANY change in DNA Multiple Alleles
Multiple Alleles Example: Rabbit Coat Color
C enzyme for pigment – fully dominant over all
Cch chinchilla color (grayish white) dominant to himalayan and albino
Ch himalayan color – white with some color dominant to albino
c no enzyme – albino – recessive to all cc ChCh or Chc CchCch or CchCh or Cchc Multiple Alleles
Each individual can only have 2 alleles for a gene BUT, more than 2 types of alleles may be p...
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This document was uploaded on 02/15/2014 for the course SCIENCE Pre-IB Bio at Richard Montgomery High.
- Fall '13