Question

Plants are genetically engineered with novel genes by

• A. Protoplast fusion
• B. Recombinant DNA technology
• C. Embryo rescue technique
• D. Recombination breeding

Answer 1

The correct option is B Recombinant DNA technology

Recombinant DNA technology is a series of procedures, that are used to join together (recombine) DNA segments. A recombinant DNA molecule is constructed from segments of two or more different DNA molecules. Under certain conditions, a recombinant DNA molecule can enter a cell and replicate there, either on its own or after it has been integrated into a chromosome. So, plants are genetically engineered with novel genes by recombinant DNA technology. Thus, option B is correct.

Somatic fusion, also called protoplast fusion, is a type of genetic modification in plants by which two distinct species of plants are fused together to form a new hybrid plant with the characteristics of both, a somatic hybrid.

The term embryo rescue refers to a number of in-vitro techniques, whose purpose is to promote the development of an immature or weak embryo into a viable plant.