The process involving emasculation of the flower before anthesis and depositing pollen grains on the cut end of the ovary is called as Answer : The process involving emasculation of the flower before anthesis and depositing pollen grains on the cut end of the ovary is called as – Intra-ovarian pollination...
Effect of pollen grains on the properties of endosperms is called as Answer : Effect of pollen grains on the properties of endosperms is called as – Xenia...
When embryosac receives two or more than two pollen tubes the sperm nucleus fusing with the egg nucleus may be derived from one pollen tube and one fusing with the polar nuclei may be derived from other pollen tube, the phenomenon is termed as Answer : When embryosac receives two or more than two pollen tubes the sperm nucleus fusing with the egg nucleus may be derived from one pollen tube and one fusing with the polar nuclei may be derived from other pollen tube, the phenomenon is termed as – Heterofertilization...
What is meant by Monosiphonous and Polysiphonous pollen grains? Give examples. Answer : Ans: Pollen gains that form single pollen tube are monosiphonous. Ex: Solanum. Which form more than one pollen tubes are Polysiphonous. Ex: Malvaceae, Cucurbitaceae ...
In Angiosperms, during pollination, the pollen grains are mostly Answer : In Angiosperms, during pollination, the pollen grains are mostly – Bicellular...
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