GENETICS AND EVOLUTION
GENETIC BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When pollen from a flower fertilizes itself or another flower on the same plant
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When pollen from one flower fertilizes a flower on a different plant
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A plant whose offspring share the same traits as the parent
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A plant whose offspring is genetically different from the parent.
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Detailed explanation-1: -Self-pollination is a form of pollination in which pollen from the same plant arrives at the stigma of a flower (in flowering plants) or at the ovule (in gymnosperms).
Detailed explanation-2: -Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower or another flower on the same plant. Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.
Detailed explanation-3: -Autogamy, or self-fertilization, refers to the fusion of two gametes that come from one individual. Autogamy is predominantly observed in the form of self-pollination, a reproductive mechanism employed by many flowering plants.
Detailed explanation-4: -Many plants are self-fertilizing, meaning they act as both mother and father to their own seeds. This strategy–known as selfing–guarantees reproduction but, over time, leads to reduced diversity and the accumulation of harmful mutations.
Detailed explanation-5: -Geitonogamy is the type of self-pollination where the transfer of pollen grains from the anther to the stigma takes place between different flowers in the same plant.