Q. No.Choose the incorrect statement from the following:
| 1. | In birds and mammals, internal fertilisation takes place. |
| 2. | Colostrum contains antibodies and nutrients. |
| 3. | Polyspermy is prevented by the chemical changes in the egg surface. |
| 4. | In the human female, implantation occurs almost seven days after fertilisation. |
Identify the wrong statement from the following:
| 1. | High levels of estrogen trigger the ovulatory surge. |
| 2. | Oogonial cells start to proliferate and give rise to functional ova in regular cycles from puberty onwards, |
| 3. | Sperms released from seminiferous tubules are poorly motile/ non-motile. |
| 4. | Progesterone level is high during the post ovulatory phase of menstrual cycle. |
Spot the odd one out from the following structures with reference to the male reproductive system:
1. Rete testis
2. Epididymis
3. Vasa efferentia
4. Isthmus
Seminal plasma, the fluid part of semen, is contributed by
I. Seminal vesicle
II. Prostate
III. Urethra
Iv. Bulbourethral gland
1. I and II
2. I,II and IV
3. II, III and IV
4. I and IV
Spermiation is the process of the release of sperms from:
1. seminiferous tubules
2. vas deferens
3. epididymis
4. prostate gland
Mature Graafian follicle is generally present in the ovary of a healthy human female around
1. 5-8 day of menstrual cycle
2. 11-17 day of menstrual cycle
3. 18-23 day of menstrual cycle
4. 24-28 day of menstrual cycle
Acrosomal reaction of the sperm occurs due to
| 1. | its contact with zona pellucida of the ova |
| 2. | reactions within the uterine environment of the female |
| 3. | reactions within the epididymal environment of the male |
| 4. | androgens produced in the uterus |
Which one of the following is not a male accessory gland?
1. Seminal vesicle
2. Ampulla
3. Prostate
4. Bulbourethral gland
| 1. | Spermatogonia have 46 chromosomes and always undergo meiotic cell division. |
| 2. | Primary spermatocytes divide by mitotic cell division. |
| 3. | Secondary spermatocytes have 23 chromosomes and always undergo second meiotic cell division. |
| 4. | Spermatozoa are transformed into spermatids. |
Which among the following has 23 chromosomes?
1. Spermatogonia
2. Zygote
3. Secondary oocyte
4. Oogonia
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