Grey crescent is the area:
1. | At the point of entry of sperm into the ovum |
2. | Just opposite to the site of entry of sperm into the ovum |
3. | At the animal pole |
4. | At the vegetal pole |
If the 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
Correct sequence of embryo development:
1. Gamete → Zygote → Morula → Blastula → Gastrula
2. Gamete → Zygote → Blastula → Morula → Gastrula
3. Gamete → Neurula → Gastrula
4. Gamete → Neurula → Morula
Ovulation in the human female normally takes place during which phase of the menstrual cycle:
1. Just before the end of the secretory cycle.
2. At the beginning of the proliferative phase.
3. At the end of the proliferative phase.
4. At the mid-secretory phase.
Which of the following hormones is not a secretion product of the human placenta:
1. Prolactin
2. Estrogen
3. Progesterone
4. Human chorionic gonadotropin
Which of these induces the development of corpus Luteum:
1. LH
2. Oestrogen
3. FSH
4. LTH
After ovulation, follicles convert into:
1. Corpus luteum
2. Corpus albicans
3. Corpus cavernosa
4. Corpus callosum
Mainly which hormones control the menstrual cycle in human beings:
1. FSH
2. LH
3. FSH, LH, Estrogen
4. Progesterone
What is true for cleavage:
1. Size of the embryo increases
2. Size of cells decreases
3. Size of cells increases
4. Size of the embryo decreases
Blastopore is the pore of:
1. Archenteron
2. Blastocoel
3. Coelom
4. A.C.