NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 641 - 644 of 3511

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Question number: 641

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

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Question

Self pollination means

Choices

Choice (4)Response

a.

Transference of pollens from one flower to another on the same plant.

b.

Germination of pollens within the anther.

c.

Transference of pollens from anther to be stigma within the same flower.

d.

Occurrence of male and female sex organs in the same flowers.

Question number: 642

» Human Physiology » Neural Control and Coordination » Generation and Conduction of Nerve Impulse

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Question

Unidirectional transmission of a nerve impulse through nerve fibre is due to the fact that

Choices

Choice (4)Response

a.

Neurotransmitters are released by dendrites and not by axon endings.

b.

Nerve fibre is insulated by a medullary sheath.

c.

Sodium pump starts operating only at the cyton and then continues into the nerve fibre.

d.

Neurotransmitters are released by the axon ending and not by dendrites.

Question number: 643

» Plant Physiology » Transport in Plants » Guttation

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Question

A specialized multicellular structure in leaves which excretes water droplets is called as

Choices

Choice (4)Response

a.

Lenticels

b.

Wounds

c.

Hydathodes

d.

Stomata

Question number: 644

» Diversity in Living World » What is Living? » Binomial Nomenclature

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Question

Binomial nomenclature means

Choices

Choice (4)Response

a.

Two names of same plant.

b.

One name given by two scientists.

c.

One scientific name consisting of a generic and specific epither.

d.

Two names, one latinised, other of a person.

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