If a colour-blind man marries a woman who is homozygous for normal colour vision, the probability of their son being colour-blind is

Several hormones like hCG, hPL, estrogen. progesterone are produced by

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

Column-I Column-II

a. Mons pubis (i) Embryo formation

b. Antrum (ii) Sperm

c. Trophectoderm (iii) Female external genitalia

d. Nebenkern (iv) Graafian follicle

Which of the following depicts the correct pathway of transport of sperms?

Embryo with more than 16 blastomeres formed due to in vitro fertilization is transferred into

Which of the following is incorrect .regarding vasectomy?