Which of the following sets represents the egg apparatus in angiosperms?

Ovum and antipodals

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Ovum and synergids

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Ovum, synergids and polar nuclei

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Ovum, antipodals and synergids

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Solution

The correct option is B Ovum and synergids
A fully developed angiosperm embryo sac is a 8 nucleated and 7 celled structure with the egg apparatus at its micropylar end that consists of 3 cells (2 synergids and 1 egg cell or ovum), 3 antipodal cells at the chalazal end and a central cell having two polar nuclei at its centre.

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Similar questions

Q. The embryo sac has ___ egg cell, ___ synergids, ___ antipodal cells and ___ polar cells.

Read following statement and identify correct option
(i) Egg apparatus consist of 2 Synergids and one Oosphere
(ii) In synergids nucleus is present at chalazal end
(iii) Coenocytic megaspore is formed in monosporic condition
(iv) 3-Antipodals at chalazal end are present in Oenothera

Q. In a 7 celled and 8 nucleated embryosac :
(a) The polar nuclei are situated below the egg apparatus in central cell
(b) Egg apparatus has two synergids and one egg cell at micropylar end
(c) Filiform apparatus in synergids direct the pollen tube to enter into egg cell
(d) Antipodal cells are haploid but have different genetic composition to that of egg cell
How many above statements are true for statement given in the question?

Q. Select the correct statements regarding the structure of a mature embryo sac.

a) Egg apparatus consists one egg cell and two synergids.
(b) Antipodals cells are situated towards micropylar end.
(c) Polygonum type of embryo sac is most common type in angiosperms.
(d) Polar nuclei are situated below the egg apparatus in the larger central cell.

Q. Egg apparatus of embryo sac has egg cell and synergids. The ploidy level and number of respective cells are

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