Plant Physiology-Plant Growth and Development (NEET (National Eligibility cum Medical Entrance Test) Biology): Questions 45 - 48 of 48

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Question number: 45

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

Appeared in Year: 2016

MCQ▾

Question

You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?

Choices

Choice (4) Response

a.

Auxin and cytokinin

b.

Auxin and abscisic acid

c.

Gibberellin and abscisic acid

d.

IAA and gibberellin

Question number: 46

» Plant Physiology » Plant Growth and Development » Phases of Plant Growth and Plant Growth Rate

Appeared in Year: 2016

MCQ▾

Question

Phytochrome is a

Choices

Choice (4) Response

a.

Flavoprotein

b.

Lipoprotein

c.

Glycoprotein

d.

Chromoprotein

Question number: 47

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

Appeared in Year: 2017

MCQ▾

Question

Fruit and leaf drop at early stages can be prevented by the application of:

Choices

Choice (4) Response

a.

Gibberellic acid

b.

Auxins

c.

Cytokinins

d.

Ethylene

Question number: 48

» Plant Physiology » Plant Growth and Development » Phases of Plant Growth and Plant Growth Rate

Appeared in Year: 2017

MCQ▾

Question

Asymptote in a logistics growth curve is obtained when:

Choices

Choice (4) Response

a.

K < N

b.

The value of ‘r’ approaches zero

c.

K > N

d.

K = N

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