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What Are Sex Chromosomes?

In angiosperm...

Question

In angiosperms pollen tube liberate their male gametes into the:

A

Central cell

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B

Antipodal cells

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C

Egg cell

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D

Synergids

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Solution

The correct option is D
Synergids

The contents of the pollen tube are discharged in the synergids from where the first sperm is transferred to the egg cell, while the other sperm moves to the central cell through the cytoplasmic current

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Q. In angiosperms, pollen tube liberate their male gametes into the

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?

Inside which cells of the embryo sac do the pollen tubes liberate their male gametes?

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

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.

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