Go through the following statements:-
(i). Primary spermatocytes undergo mitotic divisions to produce secondary spermatocytes
(ii). Sperms released from the seminiferous tubules are fuly mature and motile
(iii) The head of sperm possesses may mitochondria which produce energy for the movement of tail
(iv) The human male ejaculates about 20-30 million sperms during a cuitus
which of these are correct?

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?

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?

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?

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?

Which of the following statement is correct? I. Teleost sperms have acrosome. II. Acrosome does not have nucleus. III. Acrosome of sperm contains sperm lysins. IV. Spirally arranged mitochondria are found in the mid-piece of sperm.

Go through the following statements (i) Androgens are produced by the interstitial cells (ii) Sertoli cells give rise to germ cells (iii). Secretions of male accessory glands constitute the seminal plasma which is rich in fructose, calcium and certain enzymes (iv) The presence or absence of hymen is a very reliable indicator of virginity. Which of these are correct?

Go through the following statements (i) Androgens are produced by the interstitial cells (ii) Sertoli cells give rise to germ cells (iii). Secretions of male accessory glands constitute the seminal plasma which is rich in fructose, calcium and certain enzymes (iv) The presence or absence of hymen is a very reliable indicator of virginity. Which of these are correct?

Go through the following statements (i) Androgens are produced by the interstitial cells (ii) Sertoli cells give rise to germ cells (iii). Secretions of male accessory glands constitute the seminal plasma which is rich in fructose, calcium and certain enzymes (iv) The presence or absence of hymen is a very reliable indicator of virginity. Which of these are correct?

Go through the following statements (i) Androgens are produced by the interstitial cells (ii) Sertoli cells give rise to germ cells (iii). Secretions of male accessory glands constitute the seminal plasma which is rich in fructose, calcium and certain enzymes (iv) The presence or absence of hymen is a very reliable indicator of virginity. Which of these are correct?

Go through the following statements (i) The cambium is generally more active on the inner side than on the outer. (ii) The autumn wood is darker and has a higher density than spring wood. (iii) In stem, the secondary xylem shows distinction into protoxylem and metaxylem and occurs in the from of patches. (iv) The tracheids and vessels of the sapwood get plugged by the ingrowth of the adjacent parenchyma cells into their cavities called tyloses. Which of theses are correct ? a. (i), (ii) & (iii) b. (i), (ii) & (iv) c. (i) and (ii) d. (i), (iii) & (iv)