Cleistogamous flowers are found in ....

Which of the following animals is produced without fertilization?

Rose plants produce large,attractive bisexual flowers but they seldom produce fruits. On the other hand,a tomato plant produces plenty of fruits though they have small flowers. Analyze the reasons for the failure of fruit formation in rose.

Match Column-$I$ with Column-$II$ and select the correct option using the codes given below:

Column-$I$	Column-$II$
$(A)$ Pistils fused together	$(1)$ Gametogenesis
$(B)$ Formation of gametes	$(2)$ Monocarpellary
$(C)$ Hyphae of higher Ascomycetes	$(3)$ Syncarpous
$(D)$ Unisexual female flower	$(4)$ Dikaryotic

Explain why meiosis and gametogenesis are always interlinked?

Progeny resulting from cross pollination are