Multiple Alleles Flashcards
Define MULTIPLE ALLELES
More than 2 alleles for the same genes
When multiple alleles exist, there will be a what?
A hierarchy of dominance
How are dominant or Co-dominant alleles identified
With a capital letter and subscripts of letters
What are recessive alleles identified with ?
Lower case letter
What is an example of multiple alleles in humans?
Human blood
How many alleles do humans have and how many genotypes & phenotypes do they make?
3 different alleles
that make 6 genotypes and 4 phenotypes
What do alleles control in the human blood ?
production of antigens on red blood cells
What antigen does Allele IA produce
(a is the superscript)
It produces the A antigen on the red blood cells
What antigen does Allele IB produce
(B is the superscript)
it produces antigen B on the red blood cell
What allele does “ i “ produce
allele “ i “ produces NO ANTIGEN
Why can type O blood donate to everyone else?
Because it doesn’t produce antigens
what type of dominance is “ IAIB “
CO DOMINANCE
Which types of blood does TYPE A blood produce an immune response to?
Type B and AB blood
Which types of blood does TYPE B blood produce an immune response to?
type A and AB blood
