Question

Assertion: Drosophila melanogaster is widely used in genetic research.
Reason: Drosophila melanogaster is readily available insect.

• A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion
• B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion
• C. If Assertion is true but the Reason is false
• D. If both Assertion and Reason are false

Answer 1

Answer: (B)

Drosophila may be the readily available insect but its main importance is the presence of a number of behavioural genes (mutants described as sluggish, non-climbing, flightless, easily shocked etc.) and marked sexual behaviour. The chromosomes present in it can be easily studied. In 1910, Morgan started his work on fruit fly.