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Draw a longitudinal section of a post-po...

Draw a longitudinal section of a post-pollinated pistil showing entry of pollen tube into a mature embryo-sac. Label filiform apparatus, chalazal end, hilum, antipodals male gametes and secondary nucleus .

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Longitudinal section of a post pollinated pistil.
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(a) Draw a diagram of a mature embryo sac of an angiosperm and label the following parts in it : (i) Filiform apparatus (ii) Synergids (iii) Central cell (iv) Egg cell (v) Polar nuclei (vi) Antipodals (b) Write the fate of egg cell and polar nuclei after fertilization.

(a) Draw a diagrammatic sectional view of a mature anatropous ovule and label the following parts in it : (i) that develops into seed coat. (ii) that develops into an embryo after fertilization. (iii) that develops into an endosperm in an albuminous seed. (iv) through which the pollen tube gains entry into the embryo sac. (v) that attaches the ovule to the placenta. (b) Describe the characteristic features of wind pollinated flowers.

TRUEMAN BIOLOGY-REPRODUCTION-SECTION -C
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  7. (i ) Write the characteristics features of anther, pollen and stigma o...

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