Question

In drosophila eye color is determined by multiple allele systems. Which of the following sequence is true for the dominance relationship?

(a) Eosin > red > white

(b) Red > eosin > White

(c) White > red > eosin

(d) Eosin > white > red

The question was asked by my college director while I was bunking the class.

My doubt is from Multiple Alleles in division Extension and Deviation from Mendelian Genetic Principles of Cytogenetics

Answer 1

The correct answer is (b) Red > eosin > White

To explain I would say: In case of dominant recessive relations among eye colour in Drosophila, Red is the wild type which is dominant over eosin and white. Eosin on the other hand is also dominant over white.