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Which one of the following pairs of plants structures has haploid number of chromosomes? |
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a) |
Megaspore mother cell and antipodal cells |
b) |
Egg cell and antipodal cells |
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c) |
Nucellus and antipodal cells |
d) |
Egg nucleus and secondary nucleus |
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Which one of the following pairs of plants structures has haploid number of chromosomes? |
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|
a) |
Megaspore mother cell and antipodal cells |
b) |
Egg cell and antipodal cells |
|
c) |
Nucellus and antipodal cells |
d) |
Egg nucleus and secondary nucleus |
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(b) In most cases, the mature embryo sac contains 7 cells and 8 nuclei, i.e., egg apparatus with two haploid synergid cells and one haploid egg cell at micropylar end, two haploid polar nuclei in a single central cell (which later fuse to form diploid secondary nucleus) at the middle and three haploid antipodal cells at the chalazal pole. |