14. The following table shows the results of a complementation test for eye colo

Question

14. The following table shows the results of a complementation test for eye color mutations in strains were crossed to determine if the offspring (FI generation) could grow (+) or not (). A) How many genes are Drosophila. Different mutant involved an phenotypes of the F2 generation that result from crossing the offspring of the the chromosomal configuration of this F2 generation. d which mutations are in the same gene? B) Assuming no recombination takes place, what are the possible vermillion and carnation mutant strains? Show Mutation white garnet ruby vermillion cherry c coral apricot buff carnation white arnet ruby vermillion coral buff carnation

Explanation / Answer

When two mutants are crossed and the resultant F1 progeny shows WT phenotype, it means that both the mutations are located in different genes. i.e. they are non-allelic.

When two mutants are crossed and the resultant F1 progeny shows mutant phenotype, it means that both the mutations are located in the same gene. i.e. they are allelic to each other.

'+' means WT phenotype

'-' means mutant phenotype

Complementation groups:

i. White = Cherry = Apricot = Buff

ii. Garnet

iii. Ruby

iv. Vermilion

v. Coral

vi. Carnation

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