NEET Biology question

BiologyHuman ReproductionNEET

Fill in the blanks in the following paragraph by selecting the correct option. During copulation (coitus), semen is released by the penis into the vagina and is called __(i)__. The ovum released by the ovary is transported to the __(ii)__ where __(iii)__ takes place. During fertilisation, a sperm comes in contact with the zona pellucida layer of the ovum and induces changes in the membrane that block the entry of __(iv)__ sperms. The secretions of the __(v)__ help the sperm enter into the cytoplasm of the ovum.

Answer: (A)

Solution

The release of semen into the vagina during coitus is insemination (i); the ovum is transported to the ampulla of the oviduct, where fertilisation (ii, iii) takes place; sperm contact with the zona

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Question ID VK-122256