In oogenesis, when a diploid cell undergoes meiosis, how many ova result?
1. 1
2. 2
3. 3
4. 4
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 corpus luteum produces _______________, which inhibits ovulation.
1. LH
2. FSH
3. estrogen
4. Progesterone
Which of the following is the correct sequence for the development and regression of an ovarian follicle?
1. primordial follicle, mature vesicular ovarian follicle, corpus albicans, and corpus luteum
2. primordial follicle, mature vesicular ovarian follicle, corpus luteum, and corpus albicans
3. primordial follicle, corpus luteum, corpus albicans, and mature vesicular ovarian follicle
4. primordial follicle, corpus luteum, mature vesicular ovarian follicle, and corpus albicans
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
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
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
Cleavage is:
(1) Dissolution of the zona pellucida
(2) A specialized mitotic division in late fetus
(3) A specialized meiotic division in late fetus
(4) A specialized mitotic division in zygote and early embryo
Consider the following two statements:
I. Not all copulations lead to fertilization and pregnancy
II. Fertilization can occur if the ovum and the sperms are simultaneously transported to the fallopian tubes.
1. Both I and II are correct and II correctly explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct