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:  Fertilization |
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 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:  Fertilization |
Please attempt this question first.
Please attempt this question first.
Please attempt this question first.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology