AIIMS Biology: Questions 121 - 129 of 405

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Question number: 121

» Reproduction » Sexual Reproduction in Flowering Plants » Double Fertilization

MCQ▾

Question

The number of nuclei taking part in double fertilization are

Choices

Choice (4) Response

a.

Three

b.

Four

c.

Two

d.

Five

Question number: 122

» Plant Physiology » Plant Growth and Development » Seed Germination

MCQ▾

Question

In which part of embryo maximum growth take place in hypogeal germination:

Choices

Choice (4) Response

a.

Epicotyl

b.

Hypocotyl

c.

Radicle

d.

Plumule

Question number: 123

» Plant Physiology » Plant Growth and Development » Seed Germination

MCQ▾

Question

In which of the following plants cotyledons remains under ground during germination:

Choices

Choice (4) Response

a.

Rhizophora

b.

Castor

c.

Bean

d.

Gram

Question number: 124

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

MCQ▾

Question

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

Choices

Choice (4) Response

a.

100

b.

125

c.

150

d.

200

Question number: 125

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

MCQ▾

Question

Important “Aeroallergens in India is: -

Choices

Choice (4) Response

a.

Amaranthus

b.

Holoptelea

c.

Serjania

d.

Borassus

Question number: 126

» Plant Physiology » Plant Growth and Development » Seed Dormancy

MCQ▾

Question

What is the cause of long-dormancy in seeds?

Choices

Choice (4) Response

a.

Undeveloped embryo

b.

Presence of ABA/Ferulic acid

c.

Impermeable seed coat

d.

All a. , b. and c. are correct

Question number: 127

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

MCQ▾

Question

The bud dormancy in Potato is due to.

Choices

Choice (4) Response

a.

ABA

b.

Inhibitor- β

c.

Ethylene

d.

Phenolics

Question number: 128

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

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.

1.5

b.

40

c.

20

d.

30

Question number: 129

» Plant Physiology » Plant Growth and Development » Seed Dormancy

MCQ▾

Question

What is the cause of dormancy in Tomato Seeds?

Choices

Choice (4) Response

a.

Presence of Ferulic acid

b.

Undeveloped embryo

c.

Hard seed coat

d.

All of the above

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