Question

Which of the following technique is used to isolate an antifreeze gene from a cold-water species of fish and then to introduce it into the genome of a different organism.

• A. Cloning
• B. Artificial selection
• C. Selective breeding
• D. Genetic engineering
• E. Sexual recombination

Answer 1

The correct option is D Genetic engineering

Genetic engineering is the transfer of genes of desired protein products from source to recipient organisms. Transfer of antifreeze gene of fish to a genome of another organism, it is the process of genetic engineering. Cloning means the production of genetically identical cells/organisms. Artificial selection refers to isolation of superior species showing desired traits and hybridization. Selective breeding is a technique to allow cross between two organisms showing desired traits. Sexual recombination means the presence of both paternal and maternal genes in offspring. Thus, the correct answer is option D.