If interference is complete or cent percent then the frequency of observed double crossover will be
Equal to expected frequency
Greater than expected frequency
Lesser than expected frequency
Zero
When two genetic loci produce identical phenotypes in cis as well as in trans position, they are considered to be
The expression of genes for the production of milk in only females is a
If mother and father both are without pigments $(albinism)$, then
Phenylketonuria is an inborn error of metabolism that is inherited as
Which mutation causes change in allele?