A. | In the human pregnancy, the major organ systems are formed at the end of 12 weeks. |
B. | In human pregnancy the major organ systems are formed at the end of 8 weeks. |
C. | In human pregnancy heart is formed after one month of gestation. |
D. | In human pregnancy, limbs and digits develop by the end of second month. |
E. | In human pregnancy the appearance of hair is usually observed in the fifth month. |
1. | B, C, D and E only |
2. | A, C, D and E Only |
3. | A and E Only |
4. | B and C Only |
List-I | List-II | ||
A. | Head | I. | Enzymes |
B. | Middle piece | II. | Sperm motility |
C. | Acrosome | III. | Energy |
D. | Tail | IV. | Genetic materials |
A. | The reductive division for the human female gametogenesis starts earlier than that of the male gametogenesis. |
B. | The gap between the first meiotic division and the second meiotic division is much shorter for males compared to females. |
C. | The first polar body is associated with the formation of the primary oocyte. |
D. | Luteinizing Hormone (LH) surge leads to disintegration of the endometrium and onset of menstrual bleeding. |
Assertion (A): | FSH acts upon ovarian follicles in female and Leydig cells in male. |
Reason (R): | Growing ovarian follicles secrete estrogen in female while interstitial cells secrete androgen in male human being. |
1. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
2. | (A) is True but (R) is False |
3. | (A) is False but (R) is True |
4. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
Statement I: | The presence or absence of hymen is not a reliable indicator of virginity. |
Statement II: | The hymen is torn during the first coitus only. |
Assertion (A): | Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby. |
Reason (R): | Colostrum contains several antibodies absolutely essential to develop resistance in the new born baby. |
1. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
2. | (A) is True but (R) is False. |
3. | (A) is False but (R) is True. |
4. | Both (A) and (R) are True and (R) is the correct explanation of (A). |