Statement A: | The ovulatory phase is followed by luteal phase during which the remaining parts of the Graffian follicle transforms into the corpus luteum |
Statement B: | Cyclic menstruation is an indicator of normal reproductive phase and extends between menarche and menopause |
Column-I | Column-II | ||
a. | Sertoli cells | (i) | Starts only after attaining puberty |
b. | Ovarian follicles | (ii) | Induced by a complex neuroendocrine mechanism |
c. | Menstrual cycle | (iii) | Are found embedded in stroma |
d. | Parturition | (iv) | Provide nutrition to the dividing germ cells |
(a) | Inner cell mass gets differentiated as the embryo after implantation |
(b) | After attachment of embryo with uterus, the uterine cells divide rapidly and cover the blastocyst |
(c) | The blastocyst continues to divide and transforms into morula |
(d) | After implantation, the blastocyst becomes embedded within myometrium of uterus |
Assertion(A): | In humans, all copulations cannot lead to fertilisation and pregnancy |
Reason (R): | Ferrtilisation can only occur if the ovum and sperms are transported simultaneously to the ampulla |
1. | Both (A) and (R) are true and (R) is not the correct explanation of (A) |
2. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
3. | (A) is true but (R) is false |
4. | (A) is false but (R) is true |
Column -I | Column -II | ||
a. | Infundibulum | (i) | Wider part of oviduct |
b. | Womb | (ii) | Part of oviduct closer to ovary |
c. | Ampulla | (iii) | Cushion of fatty tissue |
d. | Mons pubis | (iv) | Inverted pear-shaped |
Column-I | Column-II | ||
a. | Corpus luteum | (i) | Secretes inhibin in males to inhibit FSH |
b. | Sertoli cells | (ii) | Secretes a hormone to maintain pregnancy |
c. | Seminal vesicle | (iii) | Transforms ruptured Graafian follicle into corpus lutem |
d. | Luteinizing hormone | (iv) | Its secretion constitutes major part of semen |
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 |
Column-I | Column-II | ||
a. | Spermiogenesis | (i) | Milk production towards the end of pregnancy |
b. | Lactation | (ii) | Transformation of spermatids into spermatozoa |
c. | Chorionic villi | (iii) | Finger-like projections at the edge of the infundibulum |
d. | Fimbriae | (iv) | Finger-like projections appear on the trophoblast |