BOTANY
PLANT REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a mate does not have to be nearby
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it can be achieved by different types of pollination (wind, animals, etc ____ )
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there is less chance involved as to whether or not pollen will make it to pistil.
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it increases the genetic diversity of the offspring.
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Detailed explanation-1: -The primary disadvantage of self-pollination is that there is no cross-pollination of genetic material. As a result of which: The vigour and vitality of the race are significantly diminished. The immune system of the offspring is weakened as a result of the pregnancy.
Detailed explanation-2: –Without bumble bees, a flowering plant that can self‑pollinate lost substantial genetic variation within only nine generations, an experimental study found. A group of “selfing” monkeyflower plants lost 13% to 24% of their genetic variation compared to another group that were propagated by bumble bees.
Detailed explanation-3: -The seeds are in smaller quantities. New plant varieties cannot be created. Because the endosperm is so little, the seeds produced are feeble.
Detailed explanation-4: -Advantages of self-pollination Only a few pollen grains are capable of pollinating the bloom. The race’s purity is preserved. Pollen grains are not wasted when plants self-pollinate. Pollination failure is less likely.
Detailed explanation-5: -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. In contrast, cross-pollination leads to greater genetic diversity because the male and female gametophytes are derived from different plants.