Plant Growth Regulators & Plant Development Practice Questions (Q6-10) - Plant Physiology

6

ICAR JRF Plant Physiology 29 Jun 2024Shift 1

Assertion & Reason +4 −1

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).

Assertion (A) : B-lactam antibiotics are given in combination with clavulanic acid

Reason (R) : Clavulanic acid binds with B-lactamase with a high affinity, inhibits it and prevents it to act on the B-lactam antibiotics.

In light of the above statements, choose the correct answer from the options given below.

Both (A) and (R) are true and (R) is the correct explanation of (A) Both (A) and (R) are true but (R) is NOT the correct explanation of (A). (A) is true but (R) is false. (A) is false but (R) is true.

7

ICAR JRF Plant Physiology 29 Jun 2024Shift 1

Statement Based +4 −1

Given below are two statements

Statement (I) : During feedback inhibition of enzyme, the activity of an enzyme already present in the cell and it is inhibited by the end product of the reaction

Statement (II) : During repression of enzyme, the synthesis of an enzyme is inhibited by the end product of the reaction

In light of the above statements, choose the most appropriate answer from the options given below.

Both Statement (I) and Statement (II) are true. Both Statement (I) and Statement (II) are false. Statement (I) is true but Statement (II) is false. Statement (I) is false but Statement ({I) is true.

8

ICAR JRF Plant Physiology 29 Jun 2024Shift 1

Statement Based +4 −1

Given below are two statements

Statement (I) : Two genes, DEFECTIVE KERNEL1 (DEK?) and CRINKLY4 (CR4), have been implicated in aleurone layer differentiation

Statement (II) : The CR4 protein is a receptor-like kinase that also functions as a positive regulator of aleurone cell fate

In light of the above statements, choose the most appropriate answer from the options given below.

Both Statement (I) and Statement (II) are true. Both Statement (I) and Statement (II) are false. Statement (I) is true but Statement (II) is false. Statement (I) is false but Statement ({I) is true.

9

ICAR JRF Plant Physiology 29 Jun 2024Shift 1

Statement Based +4 −1

Given below are two statements

Statement (I) : In most of the species, the stems of in vitro developed plants are hyperlignified.

Statement (II) : In most of the species, in vitro developed leaves show poor mesophyll differentiation and weak vasculature.

In light of the above statements, choose the most appropriate answer from the options given below.

Both Statement (I) and Statement (II) are true. Both Statement (I) and Statement (II) are false. Statement (I) is true but Statement (II) is false. Statement (I) is false but Statement ({I) is true.

10

ICAR JRF Plant Physiology 29 Jun 2024Shift 1

MCQ (Single Correct) +4 −1

What is the gene encoded by the auxB gene of T-DNA?

Indole acetamidehydrolase Tryptophan monooxygenase Isopentenyl transferase Aminoglycoside adenyltransferase

Plant Growth Regulators & Plant Development

Plant Physiology Subjects

General Agriculture

Cell Organelles & Water Relations

Metabolic Processes & Growth Regulation

Crop Productivity & Modelling

Abiotic Stress Responses in Plants

Plant Growth Regulators & Plant Development

Mineral Nutrition

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Plant Physiology- ICAR JRF/SRF 2024

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