17.5 Codominance and multiple alleles

Question 1

when does codominance occur

Answer 1

• when two different alleles are equally expressed in an organisms phenotype
• share equal dominance
• leads to a phenotype that is a mix of both alleles

Question 2

what are multiple alleles

Answer 2

• a gene that exists in more than two allelic forms
• an individual can only have two alleles of a specific gene at any one time
• increases phenotype diversity among individuals in a population

Question 3

example of mutiple allele

Answer 3

• blood types
• ABO
• A and B are codominant
  O is recessive