Reproduction-Sexual Reproduction in Flowering Plants (NEET Biology): Questions 1 - 6 of 88

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Question number: 1

» Reproduction » Sexual Reproduction in Flowering Plants » Pollination-Types, Agencies and Examples

MCQ▾

Question

Pollen kit is present in

Choices

Choice (4) Response

a.

Anemophilous flowers

b.

Hydrophilious flowers

c.

Entomophilous flowers

d.

Ornithophilous flowers

Question number: 2

» Reproduction » Sexual Reproduction in Flowering Plants » Pollination-Types, Agencies and Examples

MCQ▾

Question

Which one of the following characters causes cross pollination?

Choices

Choice (4) Response

a.

Dichogamy

b.

All of these

c.

Cleistogamy

d.

Homogamy

Question number: 3

» Reproduction » Sexual Reproduction in Flowering Plants » Flower Structure

MCQ▾

Question

Part of the gynoecium which receives the pollen is called

Choices

Choice (4) Response

a.

Ovule

b.

Stigma

c.

Style

d.

Ovary

Question number: 4

» Reproduction » Sexual Reproduction in Flowering Plants » Development of Endosperm and Embryo

MCQ▾

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.

b.

The vegetative cell has not been damaged.

c.

The laser beam does not damage the region from which pollen tube emerges.

d.

The contents of killed generative cell permit germination and pollen tube growth.

Question number: 5

» Reproduction » Sexual Reproduction in Flowering Plants » Pollination-Types, Agencies and Examples

MCQ▾

Question

Correct definition of pollination is

Choices

Choice (4) Response

a.

Transfer of pollen grain from anther to stigma.

b.

Growth of pollen tube in ovule.

c.

Germination of pollen grain.

d.

Visits of insects in flower.

Question number: 6

» Reproduction » Sexual Reproduction in Flowering Plants » Special Modes-Apomixis, Parthenocarpy, Polyembryony

MCQ▾

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

b.

Induced mutation

c.

polyploidy

d.

Apomixes

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