NEET BIOLOGY

PLANT PHYSIOLOGY

PLANT GROWTH

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is not a benefit of self-pollination?
A
a mate does not have to be nearby
B
it can be achieved by different types of pollination (wind, animals, etc ____ )
C
there is less chance involved as to whether or not pollen will make it to pistil.
D
it increases the genetic diversity of the offspring.
Explanation: 

Detailed explanation-1: -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.

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: -Self-pollination leads to lack in variation that means no adaptation towards changing environment or potential pathogen attack. It also leads to inbreeding depression lead to weakening the species.

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