Insect resistance in host crop plants may be due to morphological, biochemical, or physiological characteristics. Identify the correct statements:

I: Hairy leaves in several plants are associated with resistance to jassids in cotton and cereal leaf beetle in wheat.
II: In wheat, solid stems lead to non-preference by the stem sawfly and smooth-leaved and nectar-less cotton varieties do not attract bollworms.
III. High aspartic acid, low nitrogen and sugar content in maize lead to resistance to maize stem borers.

 

1. Only I and II 2. Only I and III
3. Only II and III 4. I, II and III
Subtopic:  Insect & Pest Resistance (OLD NCERT) |
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Match biofortified crops in Column I with enriched nutrients in Column II and select the correct answer from the codes given:

 

Column I

 

Column II

A.

Maize hybrids

a.

lysine and tryptophan

B.

Atlas 66

b.

high protein content

C.

Golden rice

c.

Vitamin A

Code

A B C
1. a b c
2. a c b
3. b a c
4. c a b
Subtopic:  Impact: Green Revolution (OLD NCERT) | Breeding for Disease Resistance (OLD NCERT) | Insect & Pest Resistance (OLD NCERT) |
 83%
From NCERT
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NEET 2025 - Target Batch