Question

6. Distinguish between
(iii) Protandry and Protogyny
(iv) Pollination and Fertilization
(v) Egg nucleus and Endosperm nucleus
(vi) Self and Cross pollination​

Answer 1

Answer:

(Vi) is the answer

Explanation:

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Answer 2

Protandry and Protogyny :

Protandrous refers to stamens developing, or pollen release occurring, prior to the maturation of carpels or stigmas being receptive. Protogynous is the reverse, with carpels or stigmas developing before stamens mature or pollen is released.

Pollination and Fertilization :

Pollination is the transfer of pollen grains from an anther to a stigma. Pollen can be transferred by an animal or by the wind. Fertilisation takes place inside the ovary when the nucleus of pollen grain fuses with the nucleus of an ovule to produce a zygote.

Egg nucleus and Endosperm nucleus :

One sperm nucleus fertilizes the egg cell, forming a zygote, while the other sperm nucleus usually fuses with the binucleate central cell, forming a primary endosperm cell.

Self and Cross pollination :

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.