$A$ : Myotonic dystrophy is caused by recessive mutant pleiotropic gene.
$R$ : Gene mutation leads to more synthesis of fibrillin proteins.
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
The phenomenon in which an allele of one gene suppresses the activity of an allele of another gene is known as
Polyploidy can be induced by the application of
The evidence that crossing over occurs at four stranded stage and not at two stranded stage of the chromosomes, comes from
Which of the following phenomena leads to variation in $DNA$?