A family of white tigers is depicted in the following pedigree. In answering the

Question

A family of white tigers is depicted in the following pedigree. In answering the following questions, assume that white is determined by allelic differences at a single gene and that the trait is fully penetrant. Base your answers only on information in the pedigree. If a is true, b is false and c-e are true, enter TFTTT.

For the following questions, assume that white tigers are indicated by the unshaded symbols. White coat color could be caused by:

a Y-linked allele.

b. a dominant X-linked allele.

c. a dominant autosomal allele.

d. a recessive X-linked allele.

e. a recessive autosomal allele.

For the following questions, assume that white tigers are indicated by shaded symbols.

White coat color could be caused by:

a. a Y-linked allele.

b. a dominant X-linked allele.

c. a dominant autosomal allele.

d. a recessive X-linked allele.

e. a recessive autosomal allele.

Explanation / Answer

Pedigree is not given but the answers are assumed

1) FTFFF

This is because, the If the allele on X chromosome determines the white color then it can be passed to offspring, since coat color is maternally inherited.

2) this answer would also be same as above FTFFF.

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