A situation where the coefficient of coincidence is greater

A situation where the coefficient of coincidence is greater than 1.0 would indicate that:

the interference is high and one crossover suppresses the occurrence of a second one.

no double crossovers were found in the progeny of a testcross, even though some were expected based on probability.

double crossovers were found in the progeny of a testcross, but there were fewer of them than would be expected based on probability.

there were more double crossovers in the progeny than would be expected based on probability.

the genes involved were actually assorting independently.

Solution

Answer : The correct answer is D (there were more double crossovers in the progeny than would be expected based on probability)

Supplementary information : The strength of the interference varies in different segments of the chromosomes and is usually expressed in terms of co-efficient of coincidence or the ratio between the observed and the expected double crossovers.