In how much maximum period the stored blood should be transfused

$A$ normal woman, whose father had colour blindness, married a normal man. What is the chance of occurrence of colour blindness in the progeny?

___$(B)$___ used the frequency of recombination between gene pairs on the ___$(A)$___ as a measure of the distance between genes and mapped their position on the chromosome

$(A) \;\;\quad\;\;(B)$

Milk secretion and beard growth, both the traits are

Generation of non-parental gene combinations is termed as

Epistasis implies