Statement I: | Vas deferens receives a duct from seminal vesicle and opens into urethra as the ejaculatory duct. |
Statement II: | The cavity of the cervix is called cervical canal which along with vagina forms birth canal. |
A. | In non-primate mammals cyclical changes during reproduction are called oestrus cycle. |
B. | First menstrual cycle begins at puberty and is called menopause. |
C. | Lack of menstruation may be indicative of pregnancy. |
D. | Cyclic menstruation extends between menarche and menopause. |
1. | A, C and D only | 2. | A and D only |
3. | A and B only | 4. | A, B and C only |
Assertion (A): | Endometrium is necessary for implantation of blastocyst. |
Reason (R): | In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium. |
1. | (A) is false but (R) is true. |
2. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
3. | Both (A) and (R) are true but (R) is NOT the correct explanation of (A). |
4. | (A) is true but (R) is false. |
A. | Gonadotropin LH stimulates synthesis and secretion of Androgen |
B. | Gonadotropin releasing hormone from hypothalamus |
C. | Androgen stimulates spermatogenesis |
D. | Gonadotropin FSH helps in the process of spermiogenesis |
E. | Gonadotropins from anterior pituitary gland |
1. | (E), (A), (D), (B), (C) | 2. | (C), (A), (D), (E), (B) |
3. | (B), (E), (A), (C), (D) | 4. | (D), (B), (A), (C), (E) |
I: | The primary follicles get surrounded by more layers of granulosa cells, a theca and shows fluid filled cavity antrum. Now it is called secondary follicle. |
II: | Graafian follicle ruptures to release the secondary oocyte from the ovary by the process called ovulation. |
Statement I: | The release of sperms from the seminiferous tubules is called spermiation. |
Statement II: | Spermiogenesis is the process of formation of sperms from spermatogonia. |
a. | It results in the formation of haploid gametes. |
b. | Differentiation of gamete occurs after the completion of meiosis. |
c. | Meiosis occurs continuously in a mitotically dividing stem cell population. |
d. | It is controlled by the Luteinising hormone (LH) and Follicle Stimulating Hormone (FSH) secreted by the anterior pituitary. |
e. | It is initiated at puberty. |
1. (b), (c), and (e) only | 2. (c) and (e) only |
3. (b) and (c) only | 4. (b), (d) and (e) only |
1. Adult | 2. Puberty |
3. Embryonic development stage | 4. Birth |
How many Y-chromosomes are present in the 2nd polar body in human beings?
1. 01
2. 00
3. 23
4. 02
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Which of the following hormones are secreted in women only during pregnancy?
(a) Relaxin
(b) Oxytocin
(c) hCG
(d) hPL
(e) Progesterone
Choose the most appropriate answer from the options given below:
1. (c) , (d) and (e) only
2. (b) and (e) only
3. (b) , (c) and (d) only
4. (a) , (c) and (d) only