Question

Maya Is a carrier for albinism, a recessive tralt that results in the absence of the skin plgment melanin In halr and

Answer 1

Answer:

The correct answer is as follows:

Explanation:

In this given question, Maya is a carrier for albinism which express in presence of two copies of a recessive gene and after marriage with Jack she has 4 children among three are normal and one has albinism which suggests that the ratio of the albinism in this family is 3:1 phenotypically.

Maya - Aa (heterozygous carrier)

Jack - AA or Aa

cross between two

     A     a

A   AA   Aa

a    Aa    aa

this cross showing that the jack is heterozygous for the condition as the result are the same as given in question 3:1