The arrangement of the nuclei in a normal embryo sac in the dicot plants, is |
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a) |
2+4+2 |
b) |
3+2+3 |
c) |
2+3+3 |
d) |
3+3+2 |
The arrangement of the nuclei in a normal embryo sac in the dicot plants, is |
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a) |
2+4+2 |
b) |
3+2+3 |
c) |
2+3+3 |
d) |
3+3+2 |
(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). |