$A$ factor that cannot express its effect in the presence of another is called.....

$A$ diploid organism is heterozygous for $5$ loci and homozygous for $2$ loci,how many types of gametes can be produced?

Which among the following characters selected by Mendel in a pea plant is a recessive character?

What are organisms called that possess identical genetic factors for a specific trait?

The alleles are

In the case of $PTC$ tasters and non-tasters in humans,$T$ represents the dominant allele and $t$ represents the recessive allele. Which of the following genotypes is unable to taste $PTC$?