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Regarding flower (of angiosperm) : Match the following and choose the most appropriate option:

A. male *** organ 1.pistil
B. female *** organ 2. stamen
C. embryo- sacs 3. three-celled egg apparatus
D. reduced female gametophyte 4. carpel
5. embryo- sacs
6. haploid
7. diploid

( A ) A-2; B-1; C-3;D-5
( B ) A-2; B-1,4; C-3,6;D-5
( C ) A-2; B-3,4; C-5,7;D-1
( D ) A-2; B-1; C-3,7;D-4
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(B) is the right answer.

flower (of angiosperm) : The male *** organ in a flower is the stamen. Each stamen consists of a slender filament with an anther at the tip. The anthers, following meiosis, produce pollen grains. The female *** organ in a flower is the pistil or the carpel. Pistil consists of an ovary enclosing one to many ovules. Within ovules are present highly reduced female gametophytes termed embryo- sacs. The embryo-sac formation is preceded by meiosis. Hence, each of the cells of an embryo-sac is haploid. Each embryo-sac has a three-celled egg apparatus – one egg cell and two synergids, three antipodal cells and two polar nuclei. The polar nuclei eventually fuse to produce a diploid secondary nucleus.
answered Apr 2, 2014 by pady_1
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