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Agriculture · Q854

Horticulture

Graduate and Post Graduate · Agriculture · question 854

Q854

Find out the correct statement about the cells present in embryo sac.

A.
Egg cell, 2 antipodal cells, a secondary nucleus and 2 synergids
B.
3 antipodal cells, 2 synergids, a egg cell and a 2n secondary nucleus
Answer
C.
1 egg cell, 2 synergids and 2 secondary nucle
D.
A 2n secondary nucleus, one egg cell and 3 antipodal cells

Answer: Option B

Solution

Answer: Option B
Solution:
The mature embryo sac consists of four cell types; the egg cell, synergids, antipodal cells and polar nuclei. The correct statement about the cells present in the embryo sac is 3 antipodal cells, 2 synergids, an egg cell and a 2n secondary nucleus.
The egg cell and the two synergids at the micropolar end, the antipodals at the chalazal end and the central cell containing the two polar nuclei and a large central vacuole.