1.

What will be the phenotype and genotype of a daughter born to bald mother and non-bald father?(a) b+/b+ non-bald(b) b+/b+ bald(c) b/b+ non-bald(d) b/b+ baldI got this question in unit test.Question is from Sex Influenced Traits and Sex Limited Traits topic in section Chromosomes and Sex Determination of Cytogenetics

Answer»

The correct CHOICE is (c) b/b+ non-bald

To elaborate: BALDNESS is a dominant gene for a male. A bald mother is thus homozygous for the allele; at least one baldness gene will thus pass to offspring from her. The father is normal so he must LACK any baldness allele and a normal gene will pass from him. HENCE daughter is a heterozygote and normal.



Discussion

No Comment Found

Related InterviewSolutions