NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 582 - 588 of 3511

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Question number: 582

» Reproduction » Sexual Reproduction in Flowering Plants » Double Fertilization

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MCQ▾

Question

Number of nuclei taking part in double fertilization is

Choices

Choice (4)Response

a.

3

b.

4

c.

2

d.

5

Question number: 583

» Structural Organization in Animals and Plants » Plant Tissues - Morphology, Anatomy and Functions » Flower

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MCQ▾

Question

In monadelphous condition, stamens have

Choices

Choice (4)Response

a.

Filaments united in groups but all anthers are free.

b.

anthers and filaments are fused.

c.

Filaments of all united in one group but anthers are free.

d.

Anthers are fused but filaments are free.

Question number: 584

» Plant Physiology » Plant Growth and Development » Photoperiodism

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MCQ▾

Question

When the dark period of short day plants is interrupted by brief exposure of light, then the plant

Choices

Choice (4)Response

a.

Flower immediately.

b.

Will not flower at all.

c.

Turn into a long day plant.

d.

Give more flowers.

Question number: 585

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

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MCQ▾

Question

Syngamy means

Choices

Choice (4)Response

a.

Fusion of cytoplasm.

b.

Fusion of gametes.

c.

Fusion of similar spores.

d.

Fusion of dissimilar spores.

Question number: 586

» Diversity in Living World » Five Kingdom Classification » Plant Group - Pteridophytes

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MCQ▾

Question

Meristems are found in

Choices

Choice (4)Response

a.

fern rhizome

b.

fern leaf

c.

cycas stem

d.

pinus needle

Question number: 587

» Diversity in Living World » Five Kingdom Classification » Monera

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MCQ▾

Question

Nitrogen fixation by Nostoc takes place in

Choices

Choice (4)Response

a.

akinetes

b.

hormogonia

c.

vegetative cells

d.

heterocysts

Question number: 588

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

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MCQ▾

Question

The genotypes of a plant variety were TtHh, Tthh, ttHh, and tthh, where T = tallness and H = hairy stem. Which one of the following crosses would produce progeny giving a phenotypic ratio approximately 1: 1: 1: 1?

Choices

Choice (4)Response

a.

TtHh x tthh

b.

TtHh x TTHh

c.

TtHh x ttHh

d.

TtHh x TtHh

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