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Byju's Answer
Standard XII
Biology
Development of Female Gametophyte
In mature emb...
Question
In mature embryo sac, the central cell is
A
Single nucleate
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B
Binucleate
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C
Four nucleate
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D
Eight nucleate.
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Solution
The correct option is
B
Binucleate
The central cell of a mature angiospermic embryo sac contains two polar nuclei.
The two polar nuclei get fused prior to fertilisation to form a diploid secondary nucleus.
Hence, the central cell is binucleate.
So, the correct answer is B.
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Similar questions
Q.
Choose the correct statement(s).
Statement 1: In a mature embryo sac, egg apparatus is situated towards the chalazal end.
Statement 2: In a mature embryo sac, antipodal cells are situated towards the micropylar end.
Statement 3: An angiosperm embryo sac is 7-celled 8-nucleate at maturity.
Q.
Assertion: A typical angiosperm embryo sac is 8-nucleate and 7-celled.
Reason: The large central cell of embryo sac has three polar nuclei.
Q.
In a mature embryo sac the central cell is
Q.
Select the correct statement(s) regarding the structure of a mature embryo sac.
(i) Egg apparatus is situated towards chalazal end.
(ii) Antipodal cells are situated towards micropylar end.
(iii) a typical angiospermic embryo sac is
7
-celled,
8
nucleate at maturity.
Q.
A typical angiospermic embryo sac at maturity is eight nucleate and
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