1. The fruit fly has white (w) gene on its X chromosome; therefore the wild type

Question

1. The fruit fly has white (w) gene on its X chromosome; therefore the wild type fly has white eye color. (True or False)

2. The fruit fly has Bar (B) gene on its X chromosome, the mutated Bar allele is dominant. When a Bar eyed male fly mates with a wild type female fly, the resulting offspring should be:

A. All the offspring has Bar eye phenotype

B. All the offspring has wild type eye phenotype

C. All the female offspring has Bar eye phenotype, and all male offspring has wild type eye shape

D. All the male offspring has Bar eye phenotype, and all female offspring has wild type eye shape

Explanation / Answer

A1) It is FALSE as the wild type fly has a red coloured eve, not white.

A2) Answer is C according to me i.e all the female offspring has a bar eye phenotype, and all the male offspring has a wild type eye shape.

THANK YOU.

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