AIIMS (All India Institute of Medical Sciences) Biology: Questions 124 - 131 of 467

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Question number: 124

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

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MCQ▾

Question

How many meiotic divisions are essential in formation of 100 seeds in Cyperaceae family:

Choices

Choice (4)Response

a.

125

b.

100

c.

200

d.

150

Question number: 125

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

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Question

Important “Aeroallergens in India is: -

Choices

Choice (4)Response

a.

Holoptelea

b.

Serjania

c.

Borassus

d.

Amaranthus

Question number: 126

» Plant Physiology » Plant Growth and Development » Seed Dormancy

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Question

What is the cause of long-dormancy in seeds?

Choices

Choice (4)Response

a.

Presence of ABA/Ferulic acid

b.

Impermeable seed coat

c.

Undeveloped embryo

d.

All a. , b. and c. are correct

Question number: 127

» Plant Physiology » Plant Growth and Development » Growth Regulators-Auxin, Gibberellin, Cytokinin, Ethylene, ABA

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MCQ▾

Question

The bud dormancy in Potato is due to.

Choices

Choice (4)Response

a.

Ethylene

b.

ABA

c.

Inhibitor- β

d.

Phenolics

Question number: 128

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

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MCQ▾

Question

In Angiosperm, if number of chromosomes in endosperm is 30, what will be the no. of chromosomes in nucellus: -

Choices

Choice (4)Response

a.

40

b.

1.5

c.

20

d.

30

Question number: 129

» Plant Physiology » Plant Growth and Development » Seed Dormancy

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MCQ▾

Question

What is the cause of dormancy in Tomato Seeds?

Choices

Choice (4)Response

a.

Undeveloped embryo

b.

Hard seed coat

c.

Presence of Ferulic acid

d.

All of the above

Question number: 130

» Plant Physiology » Plant Growth and Development » Seed Germination

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MCQ▾

Question

The first requirement for germination of seed is

Choices

Choice (4)Response

a.

Light

b.

Low temperature

c.

H2O

d.

Mineral salts

Question number: 131

» Plant Physiology » Plant Growth and Development » Photoperiodism

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MCQ▾

Question

Which of the following is negative photoblastic seed

Choices

Choice (4)Response

a.

Capsella

b.

Nigella

c.

Lepidium

d.

Tobacco

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