(i) | Relaxin is secreted by the ovary in the later phase of pregnancy. |
(ii) | Inner cell mass differentiates into ectoderm and endoderm just before implantation. |
(iii) | Implantation leads to pregnancy. |
(iv) | Embryo with 8 to 16 blastomeres is called morula. |
Column I | Column II | ||
a. | Parturition | (i) | Release of ovum from ruptured Graafian follicle |
b. | Menopause | (ii) | Delivery of the baby |
c. | Ovulation | (iii) | Blastocyst becomes embedded in endometrium |
d. | Implantation | (iv) | Menstrual cycles ceases around age of 50 years in human female |
Column-I | Column-II | ||
a. | Clitoris | (i) | Antrum |
b. | Tertiary follicle | (ii) | Golgi body |
c. | Inner cell mass | (iii) | Homologous to penis of male |
d. | Acrosome | (iv) | Stem cells |
Assertion(A): | During early pregnancy, hCG prevents the disintegration of corpus luteum. |
Reason(R): | Under the influence of hCG, the corpus luteum continues to produce progesterone which keeps endometrium intact. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Assertion(A): | The inner cell mass of blastocyst differentiates into outer and inner layer just before implantation. |
Reason(R): | The outer layer of blastocyst forms the embryo. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |