NEET · Biology —

Biotechnology and its Applications appeared 2 times across 1 year — 2.2% of Biology. This question is from Bt Genes and Target Pests.

Year 2024 Total
Questions 2 2
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The toxin proteins isolated from Bacillus thuringiensis, coded by which of the following genes would control cotton bollworms and corn borer, respectively?

Solution & Explanation

Related Formula

aligned Cotton Bollworms &arrow cryIAc and cryIIAb Corn Borer &arrow cryIAb aligned

Core Logic

The specific Bt toxin genes encoded by Bacillus thuringiensis are insect group specific:

  • Genes cryIAc and cryIIAb control cotton bollworms.
  • Gene cryIAb controls corn borer.

    • Therefore, for cotton bollworms and corn borer respectively, the genes are cryIAc and cryIAb.

Step 1: Option Matching

Matches with Option (3): cryIAc and cryIAb.

Pattern Recognition

Sees: "cotton bollworms and corn borer genes". Shortcut: Cotton bollworm = cryIAc/cryIIAb; Corn borer = cryIAb.

Chapter Mix

Class 12 Biology: Biotechnology and its Applications

Reference Study Guides

Biotechnology And Its Applications

More Biotechnology and its Applications Previous-Year Questions

Q162 neet_2024_05_may_morning Transgenic Animals and Human Therapeutics
The human protein named α-1-antitrypsin, obtained from transgenic animals, is used for the treatment of:
  • A. Alzheimer's disease
  • B. Emphysema
  • C. Rheumatoid arthritis
  • D. Cystic fibrosis

Solution

Related Formula
α-1-antitrypsin Transgenic Animal Source Treatment of Emphysema
Core Logic

Transgenic animals are produced to yield biological products for medical treatment. The human protein α-1-antitrypsin is harvested from transgenic organisms and is used to treat emphysema.

Step 1: Conclusion

The correct application is the treatment of emphysema.

Pattern Recognition

Sees: "alpha-1-antitrypsin". Shortcut: Used for treatment of Emphysema.

Chapter Mix

Class 12 Biology: Biotechnology and its Applications

More Biotechnology and its Applications Questions — neet_2024_05_may_morning

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Rankbit System
JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)