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Criteria for Autogamy to Take Place

In which one ...

Question

In which one of the following pollinations is autogamous?

A

Cleistogamy

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B

Geitonogamy

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C

Xenogamy

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D

Chasmogamy

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Solution

The correct option is A
Cleistogamy

Cleistogamy is autogamous pollination. When pollination and fertilization occur in unopened flowers bud, it is known as cleistogamy.

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Similar questions

Q. Define geitonogamy and xenogamy. Give advantages of self-pollination and cross-pollination. Explain how dichogamy favours cross pollination?

Q. Match the columns and choose the correct combination.

	I		II
(a)	Cleistogamy	(m)	Insect pollination
(b)	Geitonogamy	(n)	Bud pollination
(c)	Entomophily	(o)	Pollination between flower of the same plant
(d)	Xenogamy	(p)	Wind pollination
		(q)	Cross pollination

Q. Differentiate between geitonogamy and xenogamy in plants. Which one between the two will lead to inbreeding depression and why?

Q. Describe two phenomenons which can prevent both autogamy and geitonogamy and ensure xenogamy in flowering plants.

Q. Assertion :Although geitonogamy is functionally cross-pollination involving a pollinating agent, genetically it is similar to autogamy. Reason: In geitonogamy, pollen grains from the anthers of one flower are transferred to the stigma of another flower borne on the same plant.

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Criteria for Autogamy to Take Place

Standard VIII Biology

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