Reproduction-Sexual Reproduction in Flowering Plants (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology): Questions 1 - 6 of 93
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Question number: 1
» Reproduction » Sexual Reproduction in Flowering Plants » Pollination-Types, Agencies and Examples
Question
Pollen kit is present in
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Anemophilous flowers |
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| b. | Hydrophilious flowers |
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| c. | Entomophilous flowers |
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| d. | Ornithophilous flowers |
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Question number: 2
» Reproduction » Sexual Reproduction in Flowering Plants » Pollination-Types, Agencies and Examples
Question
Which one of the following characters causes cross pollination?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Dichogamy |
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| b. | All of these |
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| c. | Cleistogamy |
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| d. | Homogamy |
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Question number: 3
» Reproduction » Sexual Reproduction in Flowering Plants » Flower Structure
Question
Part of the gynoecium which receives the pollen is called
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Ovule |
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| b. | Stigma |
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| c. | Style |
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| d. | Ovary |
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Question number: 4
» Reproduction » Sexual Reproduction in Flowering Plants » Development of Endosperm and Embryo
Question
Even after killing the generative cell with a laser beam, the pollen grain of a flowering plant germinates and produced normal pollen tube because
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Laser beam stimulates pollen germination and pollen tube growth. |
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| b. | The vegetative cell has not been damaged. |
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| c. | The laser beam does not damage the region from which pollen tube emerges. |
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| d. | The contents of killed generative cell permit germination and pollen tube growth. |
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Question number: 5
» Reproduction » Sexual Reproduction in Flowering Plants » Pollination-Types, Agencies and Examples
Question
Correct definition of pollination is
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Transfer of pollen grain from anther to stigma. |
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| b. | Growth of pollen tube in ovule. |
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| c. | Germination of pollen grain. |
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| d. | Visits of insects in flower. |
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Question number: 6
» Reproduction » Sexual Reproduction in Flowering Plants » Special Modes-Apomixis, Parthenocarpy, Polyembryony
Question
Despite high level of heterozygosity, the progeny derived from seed of a cross pollinated plant was found to be completely uniform. One reason for this may be the phenomenon of
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Parthenocarpy |
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| b. | Induced mutation |
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| c. | polyploidy |
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| d. | Apomixes |
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