Question

A
MULTIPLE CHOICE TYPE
1. Which one of the following is one of the
characteristics of self-pollinated flowers ?
(a) Flowers are large and showy
(b) Flowers remain closed and do not open
(c) Stigma and anthers mature at the same time
(d) Pollen is produced in very large quantities
Pollination and Fertilization​

Answer 1

Answer:

c option is correct for this question

Answer 2

Answer:

Stigma and anthers mature at the same time is one of the characteristics of self-pollinated flowers.

Explanation:

• Self-pollinated flowers are the one that transfer pollen to the stigma of same plant.
• Since both anther and stigma are of same plant no unnecessary adaptations have to be made in the plant.
• Showy and large flowers are required to attract insects so that they can do cross pollination but no such thing is required in self-pollination.
• Flowers remain close in case of cleistogamy where pollen fall on stigma of same flower. It is characteristics of cleistogamy but not of sef-pollination as whole.
• Large amount of pollen need to produced to increase the percentage of successful pollination. This is also a case of cross pollination by which more and more pollens spread in the surrounding.
• Maturation of stigma and anther is a characteristics of self-pollination which ensures that when pollen fall from anther it reaches mature stigma of same plant and undergo fertilisation.

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