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Biotechnology and its Applications · Question 3

NEET (UG) 2026MCQEasy📈 Topic in 75% papers+4−1
1

The toxin proteins isolated from Bacillus thuringiensis, coded by which of the following genes would control cotton bollworms and corn borer, respectively?

  1. cryIAc and cryIIAb
  2. cryIAc and cryIIIAb
  3. cryIAc and cryIAb
  4. cryIIAb and cryIAc

Answer

(3) cryIAc and cryIAb

Solution

Proteins coded by cryIAc and cryIIAb control cotton bollworms.

The protein coded by cryIAb controls the corn borer.

So the pair is cryIAc (cotton bollworm) and cryIAb (corn borer).

Answer: (3)

NEET (UG) 2026

Keep practising — Biotechnology and its Applications

2

The human protein named α-1-antitrypsin, obtained from transgenic animals, is used for the treatment of .

  1. Alzheimer's disease
  2. Rheumatoid arthritis
  3. Emphysema
  4. Cystic fibrosis
NEET (UG) 2026
3

The inactive form of Bt toxin is converted to the active form in the insect gut

  1. by nucleases
  2. due to alkaline pH
  3. due to acidic pH
  4. by proteases
RE-NEET (UG) 2026
4

Which of the following genetically engineered organisms was used by Eli Lilly to prepare human insulin?

  1. Virus
  2. Phage
  3. Bacterium
  4. Yeast
NEET (UG) 2025
5

Silencing of specific mRNA is possible via RNAi because of

  1. Complementary tRNA
  2. Non-complementary ssRNA
  3. Complementary dsRNA
  4. Inhibitory ssRNA
NEET (UG) 2025
6

Why can't insulin be given orally to diabetic patients?

  1. Because of structural variation
  2. Its bioavailability will be increased
  3. Human body will elicit strong immune response
  4. It will be digested in Gastro-Intestinal (GI) tract
NEET (UG) 2025
7

Given below are two statements: In the light of the above statements, choose the correct answer from the options given below:

  1. Both Statement I and Statement II are true
  2. Both Statement I and Statement II are false
  3. Statement I is true but Statement II is false
  4. Statement I is false but Statement II is true
NEET (UG) 2024
8

Match List I with List II Choose the correct answer from the options given below:

  1. A-II, B-I, C-IV, D-III
  2. A-III, B-I, C-II, D-IV
  3. A-III, B-IV, C-I, D-II
  4. A-II, B-IV, C-I, D-III
NEET (UG) 2024
9

Given below are two statements: In the light of the above statements, choose the correct answer from the options given below :

  1. Statement I is true but Statement II is false
  2. Statement I is false but Statement II is true
  3. Both Statement I and Statement II are true
  4. Both Statement I and Statement II are false
RE-NEET (UG) 2024
10

Match List-I with List-II :

  1. A-III, B-II, C-IV, D-I
  2. A-II, B-I, C-IV, D-III
  3. A-IV, B-III, C-I, D-II
  4. A-II, B-IV, C-I, D-III
RE-NEET (UG) 2024
11

The Bt toxin in genetically engineered Bt cotton kills the pest by:

  1. Creating pores in the midgut
  2. Damaging the respiratory system
  3. Degenerating the nervous system
  4. Altering the pH of body fluids
RE-NEET (UG) 2024

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