The branch of botany dealing with heredity and variation is called

Mendelism is the genetics of $.....$.

Two allelic genes are located on

To determine the heterozygosity of an organism,one has to perform:

$A$ human male is heterozygous for autosomal genes '$A$' and '$B$'. He is also hemizygous for the haemophilic gene '$h$'. What percentage of sperms will carry the '$abh$' genotype (in $\%$) (in $\%$)?

$A$ gene is said to be dominant,if