20.4 Phenotypic Ratios Flashcards
1
Q
What is autosomal linkage?
A
Genes located on the same (non-sex) chromosome
2
Q
Why are genes that are on the same chromosome said to be linked?
A
- linked allele combinations will be inherited together (as a single unit)
- only crossing over during meiosis can separate linked allele combinations
- the nearer two genes are on a chromosome, the less likely they are to be separated during crossing over
3
Q
What is epistasis?
A
The effect of one gene on another
4
Q
What is recessive epistasis?
A
When the