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Question
Assertion :During embryo development in dicots, suspensor serves as the main nutritive tissue for the embryo. Reason: The last cell of the suspensor at the end adjacent to the embryo is known as haustorium.
Assertion :During embryo development in dicots, suspensor serves as the main nutritive tissue for the embryo. Reason: The last cell of the suspensor at the end adjacent to the embryo is known as haustorium.
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Solution
The correct option is D Both Assertion and Reason are incorrect
During embryo development in dicots, the suspensor cell divided
transversely a few times to produce a filamentous suspensor of 6−10
cells. The first cell of suspensor towards the micropylar end becomes
swollen and functions as haustorium whereas the last cell of suspensor
at the end adjacent to the embryo is known as hypophysis. The function
of the suspensor is to anchor the embryo to the embryo sac and push it
deep into the endosperm so that the embryo lies in a nutritionally
favourable environment.So, the correct answer is 'Both Assertion and Reason are incorrect'.
During embryo development in dicots, the suspensor cell divided
transversely a few times to produce a filamentous suspensor of 6−10
cells. The first cell of suspensor towards the micropylar end becomes
swollen and functions as haustorium whereas the last cell of suspensor
at the end adjacent to the embryo is known as hypophysis. The function
of the suspensor is to anchor the embryo to the embryo sac and push it
deep into the endosperm so that the embryo lies in a nutritionally
favourable environment.
So, the correct answer is 'Both Assertion and Reason are incorrect'.
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