Reproduction-Sexual Reproduction in Flowering Plants [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Biology]: Questions 1 - 5 of 229
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Question 1
Question MCQ▾
Pollen kit is present in
Choices
Choice (4) | Response | |
---|---|---|
a. | Hydrophilious flowers | |
b. | Ornithophilous flowers | |
c. | Anemophilous flowers | |
d. | Entomophilous flowers |
Question 2
Question MCQ▾
Which one of the following characters causes cross pollination?
Choices
Choice (4) | Response | |
---|---|---|
a. | Cleistogamy | |
b. | Dichogamy | |
c. | Homogamy | |
d. | All of these |
Question 3
Question MCQ▾
Part of the gynoecium which receives the pollen is called
Choices
Choice (4) | Response | |
---|---|---|
a. | Stigma | |
b. | Style | |
c. | Ovule | |
d. | Ovary |
Question 4
Question MCQ▾
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. | |
b. | The contents of killed generative cell permit germination and pollen tube growth. | |
c. | The vegetative cell has not been damaged. | |
d. | The laser beam does not damage the region from which pollen tube emerges. |
Question 5
Question MCQ▾
Correct definition of pollination is
Choices
Choice (4) | Response | |
---|---|---|
a. | Visits of insects in flower. | |
b. | Germination of pollen grain. | |
c. | Growth of pollen tube in ovule. | |
d. | Transfer of pollen grain from anther to stigma. |