The position of antipodals in mature embryo sac in angiosperm plant is -
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → At chalazal end
Option (1) At chalazal end — Correct. The chalaza is the basal part of the ovule, opposite the micropyle. The three antipodal cells lie at this end of the embryo sac.
Option (2) At micropylar end — Incorrect. The micropylar end holds the egg apparatus: two synergids and one egg cell. The antipodals are at the opposite end.
Option (3) In central part — Incorrect. The centre of the embryo sac has the large central cell with two polar nuclei. The antipodals are not in it.
Option (4) In synergid — Incorrect. A synergid is itself one cell of the egg apparatus, at the micropylar end. One cell cannot hold the three antipodal cells inside it.
NCERT Extract:
The Pistil, Megasporangium (ovule) and Embryo Sac – …
