Assertion : Frequency of crossing overs is higher then the observed frequency of recombinatin of traits in the offsprings.
Reason : More than one cross over many occur simultaneously between the same chromatids.
A. If both A and R are true and R is the correct explanation of A.
B. If both A and R are true and R is not the correct explanation of A.
C. If A is true but R is false
D. If both A and R are false
