Which among the following diseases is not sexually transmitted?

Which among the following is not the function of testes at puberty?

(i) formation of germ cells

(ii) secretion of testosterone

(iii) development of placenta

(iv) secretion of oestrogen

The correct sequence of organs in the male reproductive system for transport of sperm is:

Which among the following statements are true for sexual reproduction in flowering plants?

(i) it requires 2 types of gamete

(ii) fertilization is a compulsory event

(iii) it always results in formation of zygote

(iv) offspring formed as clones

In figure the parts A, B and C are sequentially: