Menstrual flow occurs due to the lack of progestrone. Progesterone is secreted by corpus luteum and is essential for the maintenance of endometrium. In the absence of progesterone, the endometrium starts to degenerate.
NC-II-34
5 RBTS PAPER
164161
Level of \(\mathrm{LH}\) is maximum
1 just before ovulation
2 just after ovulation
3 at the time of ovulation
4 during menstrual bleeding phase
Explanation:
The level of \(\mathrm{LH}\) is maximum at the time of ovulation in the menstrual cycle. It is called as LH surge. It induces rupture of Graafian follicles and thereby the release of ovum, i.e. ovulation.
NC-II-34
5 RBTS PAPER
164162
Cleavage forms 2-4-8-16 cells. These cells are called
1 Blastocysts
2 Blastomeres
3 Morula
4 Trophoblast
Explanation:
Cleavage forms \(2-4-8-16\) cells. These cells are called blastomeres.
NC-II-36
5 RBTS PAPER
164163
Hormones secreted by the placenta to maintain pregnancy are
1 hCG, hPL, progrestogens, estrogens
2 hCG, hPL, estrogens, relaxin, oxytocin
3 hCG, hPL, progrestogens, prolactin
4 hCG, progrestogens, estrogens, glucocorticoids
Explanation:
Hormones secreted by the placenta to maintain pregnancy are hCG, hPL, progrestogens, oestrogens.
Menstrual flow occurs due to the lack of progestrone. Progesterone is secreted by corpus luteum and is essential for the maintenance of endometrium. In the absence of progesterone, the endometrium starts to degenerate.
NC-II-34
5 RBTS PAPER
164161
Level of \(\mathrm{LH}\) is maximum
1 just before ovulation
2 just after ovulation
3 at the time of ovulation
4 during menstrual bleeding phase
Explanation:
The level of \(\mathrm{LH}\) is maximum at the time of ovulation in the menstrual cycle. It is called as LH surge. It induces rupture of Graafian follicles and thereby the release of ovum, i.e. ovulation.
NC-II-34
5 RBTS PAPER
164162
Cleavage forms 2-4-8-16 cells. These cells are called
1 Blastocysts
2 Blastomeres
3 Morula
4 Trophoblast
Explanation:
Cleavage forms \(2-4-8-16\) cells. These cells are called blastomeres.
NC-II-36
5 RBTS PAPER
164163
Hormones secreted by the placenta to maintain pregnancy are
1 hCG, hPL, progrestogens, estrogens
2 hCG, hPL, estrogens, relaxin, oxytocin
3 hCG, hPL, progrestogens, prolactin
4 hCG, progrestogens, estrogens, glucocorticoids
Explanation:
Hormones secreted by the placenta to maintain pregnancy are hCG, hPL, progrestogens, oestrogens.
Menstrual flow occurs due to the lack of progestrone. Progesterone is secreted by corpus luteum and is essential for the maintenance of endometrium. In the absence of progesterone, the endometrium starts to degenerate.
NC-II-34
5 RBTS PAPER
164161
Level of \(\mathrm{LH}\) is maximum
1 just before ovulation
2 just after ovulation
3 at the time of ovulation
4 during menstrual bleeding phase
Explanation:
The level of \(\mathrm{LH}\) is maximum at the time of ovulation in the menstrual cycle. It is called as LH surge. It induces rupture of Graafian follicles and thereby the release of ovum, i.e. ovulation.
NC-II-34
5 RBTS PAPER
164162
Cleavage forms 2-4-8-16 cells. These cells are called
1 Blastocysts
2 Blastomeres
3 Morula
4 Trophoblast
Explanation:
Cleavage forms \(2-4-8-16\) cells. These cells are called blastomeres.
NC-II-36
5 RBTS PAPER
164163
Hormones secreted by the placenta to maintain pregnancy are
1 hCG, hPL, progrestogens, estrogens
2 hCG, hPL, estrogens, relaxin, oxytocin
3 hCG, hPL, progrestogens, prolactin
4 hCG, progrestogens, estrogens, glucocorticoids
Explanation:
Hormones secreted by the placenta to maintain pregnancy are hCG, hPL, progrestogens, oestrogens.
Menstrual flow occurs due to the lack of progestrone. Progesterone is secreted by corpus luteum and is essential for the maintenance of endometrium. In the absence of progesterone, the endometrium starts to degenerate.
NC-II-34
5 RBTS PAPER
164161
Level of \(\mathrm{LH}\) is maximum
1 just before ovulation
2 just after ovulation
3 at the time of ovulation
4 during menstrual bleeding phase
Explanation:
The level of \(\mathrm{LH}\) is maximum at the time of ovulation in the menstrual cycle. It is called as LH surge. It induces rupture of Graafian follicles and thereby the release of ovum, i.e. ovulation.
NC-II-34
5 RBTS PAPER
164162
Cleavage forms 2-4-8-16 cells. These cells are called
1 Blastocysts
2 Blastomeres
3 Morula
4 Trophoblast
Explanation:
Cleavage forms \(2-4-8-16\) cells. These cells are called blastomeres.
NC-II-36
5 RBTS PAPER
164163
Hormones secreted by the placenta to maintain pregnancy are
1 hCG, hPL, progrestogens, estrogens
2 hCG, hPL, estrogens, relaxin, oxytocin
3 hCG, hPL, progrestogens, prolactin
4 hCG, progrestogens, estrogens, glucocorticoids
Explanation:
Hormones secreted by the placenta to maintain pregnancy are hCG, hPL, progrestogens, oestrogens.
