The following table shows the results of a complementation test for eye color mu

Question

The following table shows the results of a complementation test for eye color mutations in Drosophila. Different mutant strains were crossed to determine if the offspring (F1 generation) could grow (+) or not (-). How many genes are involved and which mutations are in the same gene? Assuming no recombination takes place, what are the possible phenotypes of the F2 generation that result from crossing the offspring of the vermillion and carnation mutant strains? Show the chromosomal configuration of this F2 generation.

Mutation White Garnet Ruby Vermillion Cherry Coral Apricot Buff Carnation White - + + + - - - - + Garnet + - + + + + + + + Ruby + + - + + + + + + Vermillion + + + - + + + + + Cherry - + + + - - - - + Coral - + + + - - - - + Apricot - + + + - - - - + Buff - + + + - - - - + Carnation + + + + + + + + -

Explanation / Answer

Complementation group 1 :- white, cherry, coral, apricot, buff

complementation group 2:- Garnet

Complementation group 3:- Ruby

Complementation group 4:- Vermilion

Complementation group 5:- Carnation

There are five complementation groups. So, 5 genes are present.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.