In Drosophila, white eyes is caused by a recessive allele (w) located on the X chromosome. The dominant allele (W) produces red eyes. Suppose a white-eyed female mates with a red-eyed male.
Knowing this, complete the sentences with the correct terms.

1) Among the male F1 offspring, the predicted proportion with white eyes is .
2) Among the female F1 offspring, the predicted proportion with white eyes is .
3) The genotype of the male is best represented as .
4) The genotype of the female is best represented as .
5) Among all F2 offspring, the predicted proportion with white eyes is .

a) we
b) 0%
c) 50%
d) 100%
e) WY

a)  0%

b) 100%

c) WY

d)  we

e) 50%

Explanation:

In the first generation of crossing of red eyed male with white eyed female, the male become dominant having red eyed offspring . This is due to the presence of recessive allele in the female, so all the offspring produce in F1 generation are 100 % red eyed while in F2 generation half offspring are white and half are red eyed. The recessive allele is represented by small letters while dominant allele is represented by capital letters.

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation: