Q. The fruit fly Drosophila melanogaster was found to be very suitable for experimental verification of chromosomal theory of inheritance by Morgan and his colleagues because :
A) It reproduces parthenogenetically
B) A single mating produces two young flies
C) Smaller female is easily recognisable from larger male
D) It completes life cycle in about two weeks
Explanation
[Solution from source] Drosophila is useful for genetics because it completes its life cycle in about two weeks, a single mating gives a large number of progeny, and the sexes are easy to tell apart. The female is larger than the male, not smaller, and flies reproduce sexually, not parthenogenetically. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.