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Standard X
Biology
Fetus Development
The embryo sa...
Question
The embryo sac has ___ egg cell, ___ synergids, ___ antipodal cells and ___ polar cells.
A
1,3,2,2
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B
2,1,3,2
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C
1,2,3,2
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D
1,3,2,1
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Solution
The correct option is
C
1,2,3,2
Embryo sac has one egg cell, two synergids, three antipodal cells and two polar nuclei.
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The other nuclei of cells within the embryo sac (
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Select the correct statements regarding the structure of a mature embryo sac.
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(d) Polar nuclei are situated below the egg apparatus in the larger central cell.
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In a 7 celled and 8 nucleated embryosac :
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(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
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The origin of embryo from either synergids or antipodal cells of the embryosac is called
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