Monoclonal Antibodies

S&TBiotechnology & GeneticsStatement-based● MediumCurrent-affairs-linked

Question

Which of the following are nitrogen-fixing plants? Select the correct answer using the code given below:

1.
Alfalfa
2.
Amaranth
3.
Chickpea
4.
Clover
5.
Purslane (Kulfa)
6.
Spinach

Options

1, 3 and 4 only

Answer

1, 3, 5 and 6 only

2, 4, 5 and 6 only

1, 2, 4, 5 and 6

Explanation

Alfalfa, Chickpea, and Clover are leguminous plants capable of symbiotic nitrogen fixation through root nodules.

Amaranth, Purslane, and Spinach are non-leguminous leafy greens and do not fix atmospheric nitrogen.

Legumes (like peas, clovers, and alfalfa) are the primary biological nitrogen fixers in agriculture.

Answer: (a).

Question details

Year

2025

Paper

GS Paper 1

Question

Q48

Subject

Science & Technology

Sub-topic

Biotechnology & Genetics

Type

Statement-based

Difficulty

Medium

Nature

Current-affairs-linked

Source hint

NCERT Biology Cl.11 Ch.12

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