Q. No.If mammalian ovum fails to get fertilized, which one of the following is unlikely -
1. Estrogen secretion further decreases
2. Progesterone secretion rapidly declines
3. Corpus luteum will disintegrate
4. Primary follicle starts developing
Menstrual bleeding is the result of:
1. low levels of ovarian hormones
2. high levels of ovarian hormones
3. high levels of LH
4. high levels of FSH
Identify the incorrectly matched pair:
|
1. |
Ovulation |
LH surge |
|
2. |
Follicular phase of menstrual cycle |
Regeneration of endometrium |
|
3. |
Luteal phase |
Secretion of FSH |
|
4. |
Menstruation |
Withdrawal of progesterone |
The primary oocyte completes the first meiotic division at the stage of:
1. Primordial follicle
2. Primary follicle
3. Secondary follicle
4. Tertiary follicle
Stem cells that are capable of giving rise to all the tissues and organs are present in:
1. Cumulus oophorus of the Graafian follicle
2. Lutein cells of the corpus luteum
3. Trophoblast cells of the developing embryo
4. Inner cell mass of developing embryo
| 1. | In spermiogenesis, spermatids are formed, while in spermiation, spermatozoa are formed. |
| 2. | In spermiogenesis, spermatozoa are formed, while in spermiation, spermatids are formed. |
| 3. | In spermiogenesis, spermatozoa from Sertoli cells are released into the cavity of seminiferous tubules, while in spermiation, spermatozoa are formed. |
| 4. | In spermiogenesis, spermatozoa are formed, while in spermiation, spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules. |
Match the items given in Column I with those in Column II and select the correct option given below:
| Column I | Column II | ||
| (a) | Proliferative Phase | (i) | Breakdown of the endometrial lining |
| (b) | Secretory Phase | (ii) | Follicular Phase |
| (c) | Menstruation | (iii) | Luteal Phase |
| Options: | (a) | (b) | (c) |
| 1. | (iii) | (ii) | (i) |
| 2. | (i) | (iii) | (ii) |
| 3. | (ii) | (iii) | (i) |
| 4. | (iii) | (i) | (ii) |
The fetal body is covered with fine hair, eyelashes separate, and eyelashes are formed by the end of:
(1) 20 weeks
(2) 24 weeks
(3) 28 weeks
(4) 30 weeks
Morula is a solid ball of cells during early embryonic development and consists of:
(1) 4 – 8 cells
(2) 8 – 16 cells
(3) 24 – 30 cells
(4) 60 – 72 cells
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