In majority of angiosperms

Match Column-I with Column-II and select the correct option using the codes given below : Column-I Column-II a. Pistils fused together (i) Gametogenesis b. Formation of gametes (ii) Pistillate c. Hyphae of higher Ascomycetes (iii) Syncarpous d. Unisexual female flower (iv) Dikaryotic

Which one of the following in&generates new genetic combinations leading to variation?

Which one of the following statements is not correct

The process which makes major difference between C3 and C4 plants is

Which is essential for the growth of root tip?