Some individuals with blood group -$A$ may inherit the genes for blonde hair, while other individuals with blood group -$A$ may the gene for brown hair. This can be best explained by the principle of
Dominance
Multiple alleles
Independent assortment
Incomplete dominance
Mendel was the native of
Sex-linked genes of man are
Genetic counsellors can identify heterozygous individuals by
When whole blood is stored with an anticoagulant at $4^\circ C$, the ${K^ + }$ ions move out from the $RBC$ into the plasma. The most likely reasons for this is that
Who was the scientist to introduce $ABO$ blood groups