1. | envelops only the acrosome of sperm |
2. | envelops only the mid piece of sperm |
3. | envelops the whole body of sperm |
4. | does not envelop any part of the sperm at all |
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. |