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Solutions For An Introduction to Genetic Analysis Chapter 2 Problem 63P

Step-by-Step Solution

Solution 1
Step #1 of 2

The below pedigree concerns an inherited dental abnormality, amelogenesis imperfect:

Parents:

Offspring:

a. In this pedigree, the inheritance is X-linked recessive. There are two reasons:

1. One is none of the parents are having the disease.

2. Second one is only the sons have inherited the disease.

Hence, none of the daughters are affected.

Step #2 of 2

b. Let us have this allele, for the recessive disorder as 'a' and the dominant allele is A. The genotypes are :

The parents--- A/Y, A/a, A/Y

The offspringA/Y, A/-, a/Y, A/-, A/Y, a/Y, a/Y, A/-, a/Y, A/-

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Solutions For Problems in Chapter 2
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