Assertion :More than one pollen tubes can enter an embryo sac. Reason: Double fertilization can occur by contribution of gametes from different pollens.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

During fertilization in angiosperms, only one pollen tube formed from one pollen grain enters into the embryo sac, releases two male gametes. In this, one male gamete fuses with egg(syngamy), second male gamete fuses with secondary nucleus(triple fusion). It is called double fertilization. So, the assertion and reason are incorrect.
So, the correct option is ‘Both assertion and reason are incorrect’.

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