DENDROLOGY AND SOCIETY
FAMILIES OF ANGIOSPERMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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reduces genetic variation
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increases genetic variation
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quicker because another individual is not required
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allows plants to take advantage of a stable environment
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Detailed explanation-1: -Cross-pollination is preferred because it brings about variation in species. Self-pollination does not bring about any variations. Variation brings new traits to the plant which may be advantageous to the plant. For example, it helps the new plant to defend against diseases.
Detailed explanation-2: -In nature, cross-pollination occurs when pollen from one plant is transferred to another plant, resulting in healthier offspring and new plant varieties. It’s essential for genetic variation, increasing plants’ diversity and adaptability in changing environments.
Detailed explanation-3: -Self-pollination increases the uniformity of genetics and reduces genetic variation. Cross-pollination reduces the uniformity of genetics and increases genetic variation. Both the stigma and the anther mature simultaneously in self-pollination.
Detailed explanation-4: -Self-pollination leads to the production of plants with less genetic diversity, since genetic material from the same plant is used to form gametes, and eventually, the zygote.