Question:

Function of filiform apparatus is to:

Updated On: Dec 20, 2025

Stimulate division of generative cell
Produce nectar
Guide the entry of pollen tube
Recognize the suitable pollen at stigma

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The Correct Option is C

Solution and Explanation

The correct option (C): Guide the entry of pollen tube.

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Top Questions on sexual reproduction in flowering plants

Student to attempt either option (A) or (B): (A) What is meant by ‘right’ and ‘wrong’ type of pollen when pollen lands on the stigma? A two-celled right type pollen has landed on the stigma. Explain the events taking place till fertilization in angiosperms. Why is pollen pistil interaction said to be dynamic?
OR
(B)

Give the schematic representation of oogenesis in human females indicating chromosome number at each step.
In which part of the female reproductive system do the following events take place?

I. Formation of corpus luteum
II. Maturation of tertiary follicle
III. Fertilisation
IV. Implantation
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The following question is based on pollination. Study the figures carefully and answer the questions that follow.

Give the scientific terms for the processes taking place in Figures A and B respectively.
Mention two conditions necessary for the process occurring in Figure B.

[(i)] State one advantage and one disadvantage of the process occurring in Figure B.
OR
[(ii)] Name one plant where, in some flowers only, the process in Figure B takes place and give the reason responsible for it.
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Choose the option that correctly describes the gynoecium of Michelia:
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Given below are the events that are observed in an artificial hybridisation programme. Arrange them in the correct sequential order and select the correct option.

Re-bagging
Selection of parents
Bagging
Dusting the pollens on stigma
Emasculation
Collection of pollens from male parent
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Select the following statements that are true for insect pollinated flowers from the given options.

Majority of these flowers are large, colourful and rich in nectar.
Nectars and seeds are usual floral rewards to attract insects for pollination.
Pollen grains of these flowers are generally mucilaginous so as to stick to the body of the insects.
A foul odour is emitted by some flowers to attract flies and beetles.
Choose the correct answer:
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