UPSC CSE Prelims
Question 7
Recombinant DNA technology (Genetic Engineering) allows genes to be transferred
- across different species of plants
- from animals to plants
- from microorganisms to higher organisms
Select the correct answer using the codes given below.
View correct answer and explanation
Correct answer: D
Correct Option: D
Explanation: Recombinant DNA techniques can insert genes across species and even kingdom boundaries; they are not restricted to closely related organisms.
Statement/Pair-wise Analysis:
Statement/Item 1: Correct - Genes can be transferred between different plant species.
Statement/Item 2: Correct - Genes from animal sources can be engineered into plant cells, subject to technical limits.
Statement/Item 3: Correct - Microbial genes such as Bt genes can be expressed in higher organisms.
Option-wise Analysis:
A: Incorrect - excludes true items 2, 3.
B: Incorrect - excludes true item 1.
C: Incorrect - excludes true item 2.
D: Correct - selects all and only the accurate statements/pairs.