The embryo sac in a typical dicot at the time of fertilization is ?

8

celled

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6

celled

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7

celled

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5

celled

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Solution

The correct option is C $7$ celled
There are 3 antipodals, 2 synergids, 1 egg cell and 1 central cell after the fusion of the two polar nuclei.
The sum adds up to 07. Just before the fusion of the two polar nuclei, there are 8 nuclei.
Hence 7 celled but 8 nucleate.

Thus, the correct option is C.

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Similar questions

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. 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. Typical angiosperm embryo sac at maturity has how many cells?

Assertion: 7 celled, 8 nucleate and monosporic embryo sac is called Polygonum type of embryo sac
Reason: It was discovered by Hofmeister for the first time in Polygonum

The arrangement of (i) cells and (ii) nuclei in a typical embryo sac is -

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The embryo sac in a typical dicot at the time of fertilization is ?

The correct option is C 7 celledThere are 3 antipodals, 2 synergids, 1 egg cell and 1 central cell after the fusion of the two polar nuclei. The sum adds up to 07. Just before the fusion of the two polar nuclei, there are 8 nuclei. Hence 7 celled but 8 nucleate. Thus, the correct option is C.

The correct option is C $7$ celled
There are 3 antipodals, 2 synergids, 1 egg cell and 1 central cell after the fusion of the two polar nuclei.
The sum adds up to 07. Just before the fusion of the two polar nuclei, there are 8 nuclei.
Hence 7 celled but 8 nucleate.

Thus, the correct option is C.