Epistasis Flashcards
1
Q
What is epistasis?
A
the allele of one gene masks the expression of the alleles of other genes
2
Q
What will the phenotypic ratio be if there is a homozygous recessive and homozygous dominant crossed if the epistatic allele is recessive?
A
9:3:4
3
Q
What does there need to be for epistatic recessive alleles?
A
Two copies of the recessive alleles will mask the expression of the other gene
4
Q
What do you need for dominant epistatic alleles?
A
at least one copy will block the expression of the other gene
5
Q
What will the phenotypic ratio be if there is a homozygous recessive and homozygous dominant crossed if the epistatic allele is dominant?
A
12:3:1
