At puberty:
| 1. | about 30,000-40,000 primary follicles are left in each ovary |
| 2. | about 30,000-40,000 primary follicles are left in both ovaries |
| 3. | about 60,000-80,000 primary follicles are left in each ovary |
| 4. | about 1,00,000 primary follicles are left in both ovaries |
What induces the completion of the meiotic division of the secondary oocyte?
| 1. | rupture of the Graafian follicle |
| 2. | insemination |
| 3. | contact of sperm with zona pellucida |
| 4. | entry of sperm into the cytoplasm of the ovum |
| 1. | Oxytocin | 2. | Relaxin |
| 3. | hCG | 4. | hPL |
The number of correct statements in the given statements is:
| I: | Each seminiferous tubule is lined on its inside by two types of cells called male germ cells and Sertoli cells. |
| II: | Sertoli cells synthesise and secrete testicular hormones called androgens. |
| III: | Leydig cells provide nutrition to the germ cells. |
| IV: | The testis is covered by a dense covering. |
| V: | Each testis has about 250 compartments called testicular lobules. |
1. 2
2. 3
3. 4
4. 5
| 1. | at the morula stage, within 24 – 48 hours of fertilisation |
| 2. | at the morula stage, about 96 hours post fertilisation |
| 3. | at the blastocyst stage, 7th – 8th day post fertilization |
| 4. | at the gastrula stage, about 10 days post fertilization |
What is released at the time of 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
The menstrual bleed is mainly due to the withdrawal of:
1. Oestrogen
2. Progesterone
3. LH
4. FSH
| Statement I: | Vas deferens receives a duct from seminal vesicle and opens into urethra as the ejaculatory duct. |
| Statement II: | The cavity of the cervix is called cervical canal which along with vagina forms birth canal. |
| A. | In non-primate mammals, cyclical changes during reproduction are called oestrus cycle. |
| B. | First menstrual cycle begins at puberty and is called menopause. |
| C. | Lack of menstruation may be indicative of pregnancy. |
| D. | Cyclic menstruation extends between menarche and menopause. |
| 1. | A, C and D only | 2. | A and D only |
| 3. | A and B only | 4. | A, B and C only |