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The arrangement of the nuclei in a normal embryo sac in the dicot plants, is

a)

2+4+2

b)

3+2+3

c)

2+3+3

d)

3+3+2



Question ID - 6104 | SaraNextGen Top Answer

The arrangement of the nuclei in a normal embryo sac in the dicot plants, is

a)

2+4+2

b)

3+2+3

c)

2+3+3

d)

3+3+2

1 Answer
127 votes
Answer Key / Explanation : (b) -

(b)

In angiosperms (dicots), the Polygonum type of embryo sac is most common. In this emryo sac, the arrangement of the nuclei is 3 + 2 + 3 , ie, 3 in antipodals cells, 2 as polar nuclei (which later fuse and form a diploid secondary nucleus); and 3 in egg apparatus (2 in synergids and 1 in egg cell).

127 votes


127