In Cooley's Anemia, the affected chain of a haemoglobin is
$\alpha$-globin chain
$\beta$-globin chain
Both $(a)$ and $(b)$
None of these
$A$ : One drum stick per nucleus is present in the neutrophil of normal female.
$R$ : It is absent in the neutrophil of male
Barr bodies and drumsticks are of what significance to genetists and biologists
The term "genotype'' was coined by
Which type of pollination method was adopted by Mendel in his experiment?