The key difference between centromere and chromomere is that centromere is a constricted region that joins sister chromatids together in a chromosome while chromomere is a linearly arranged… Read More
Ques. The effect of pollen grains on the development of tissue around embryo is
(a) Apomixis
(b) Scarification
(c) Xenia
(d) Amphimixis
Ans. (c)
Ques. Salk polio vaccine is an example of
(a)… Read More