- 1(current)
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. |
Subtopic: Â Fertilization |
Level 3: 35%-60%
Hints
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 |
Subtopic: Â Fertilization |
 90%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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