Q. No.LH surge:
1.
is a sudden dramatic increase in the levels of LH during the early part of the menstrual cycle and is responsible for ovulation
2.
is a sudden dramatic decrease in the levels of LH during the early part of the menstrual cycle and is responsible for ovulation
3.
is a sudden dramatic decrease in the levels of LH during the mid-menstrual cycle and is responsible for ovulation
4.
is a sudden dramatic increase in the levels of LH during the mid-menstrual cycle and is responsible for ovulation
What happens when a sperm enters the cytoplasm of the secondary oocyte?
1. Release of first polar body
2. Completion of meiosis II
3. Degeneration of polar bodies
4. Dissolution of zona pellucida
In humans, the sex of the baby is determined:
| 1. | At the time of fertilization and by the father |
| 2. | At the time of fertilization and by the mother |
| 3. | At the time of implantation and by the father |
| 4. | At the time of implantation and by the mother |
The signals of fetal ejection reflex originate from:
1. Maternal pituitary
2. Maternal hypothalamus
3. Fully developed fetus and placenta
4. Fetal pituitary
To induce uterine contractions for parturition, which of the following hormones can be injected into the female?
| 1. | hCG | 2. | Estrogen |
| 3. | Progesterone | 4. | Oxytocin |
What is released at ovulation?
1. Primary oocyte arrested at meiosis I
2. Primary oocyte arrested at meiosis II
3. Secondary oocyte arrested at meiosis I
4. Secondary oocyte arrested at meiosis II
At the birth of the female child, the follicles in her ovaries contain:
| 1. | Primary oocytes that have been arrested at the S phase of the cell cycle |
| 2. | Primary oocytes that have been arrested at the Prophase I of Meiosis I |
| 3. | Secondary oocytes that have been arrested at the Prophase I of Meiosis I |
| 4. | Secondary oocytes that have been arrested at the Metaphase II of Meiosis II |
The functions of male sex accessory ducts and glands are maintained by:
1. Hypothalamic releasing hormone
2. Pituitary gonadotropins
3. Adrenal cortex steroids
4. Testicular androgens
FSH:
1. Acts on Sertoli cells and stimulates secretion of some factors that help in spermiogenesis
2. Acts on Sertoli cells and inhibits secretion of some factors that help in spermiogenesis
3. Acts on Leydig cells and stimulates secretion of some factors that help in spermiogenesis
4. Acts on Leydig cells and inhibits secretion of some factors that help in spermiogenesis
Ovaries are the primary sex organs in human females because they:
I. Produce the female gamete
II. Produce the hormone that regulates the development of secondary sexual characters
1. Both I and II
2. Only I
3. Only II
4. None
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