Go through the following statements
(i) The secodnary oocyte undergoes meiosis II which proceeds only till metaphase until a sperm enters it.
(ii) Ovulation occurs about 36-38 hours after the start of LH surge at midcycle.
(iii) In humans, it takes about 74 hours to form a mature sperm from a primitive germ cells.
(iv). About 70% of the human ejaculate is contributed by bulbourethral glands
Which of these are correct?

Options

A. (i) & (iii)
B. (ii) & (iii)
C. (i) & (ii)
D. all are correct

Answer

C

Explanation

It takes about 74 days for spermatogenesis. 70% of human ejacualte is contributed by seminal vesicle.