An oocyte is released from the ovary under the influence of LH :
1. | after completing meiosis and before the polar bodies are released |
2. | after completing meiosis I and before the release of the polar body |
3. | after completing meiosis |
4. | after completing meiosis I and after the release of the polar body |
Both corpus luteum and macula lutea are :
1. found in human ovaries
2. a source of hormones
3. characterized by a yellow colour
4. contributory in maintaining pregnancy
What structure gets implanted on the wall of the uterus during embryonic development?
1. | 2. | ||
3. | 4. |
In the given diagram, identify A, B, C, and D respectively:
1. | LH, FSH, Progesterone and Estrogen |
2. | FSH, LH, Estrogen and Progesterone |
3. | Estrogen, Progesterone, LH and FSH |
4. | Progesterone, Estrogen, FSH and LH |
In the given diagram, the part of the female reproductive system that undergoes cyclical changes with changes in the secretion of gonadotropins and gonadal steroids during the menstrual cycle is represented by:
1. A
2. B
3. C
4. D
Which of the structures shown in the following diagram contributes the source of nutrition for the sperms ejaculated in the semen?
1. A
2. B
3. C
4. D
The phase of menstrual cycle in humans that lasts for 7-8 days is:
1. follicular phase
2. ovulatory phase
3. luteal phase
4. menstruation
Which one of the following statements with regard to embryonic development in humans is correct?
1. | Cleavage divisions bring about a considerable increase in the mass of protoplasm. |
2. | In the second cleavage division, one of the two blastomeres usually divides a little sooner than the second. |
3. | With more cleavage divisions, the resultant blastomeres become larger and larger. |
4. | Cleavage division results in a hollow ball of cells called morula. |
Women who consume the drug thalidomide for relief from vomiting during the early months of pregnancy give birth to children with :
1. | No spleen | 2. | Harelip |
3. | Extra fingers and toes | 4. | Underdeveloped limbs |
A cross-section at the midpoint of the middle piece of a human sperm will show :
1. | centriole, mitochondria, and 9+2 arrangement of microtubules |
2. | centriole and mitochondria |
3. | mitochondria and 9+2 arrangement of microtubules |
4. | 9+2 arrangement of microtubules only |