Question

Transgenic organisms are formed by

• A. Crossing two hybrids.
• B. Inducing mutations by chemicals.
• C. Introducing foreign genes.
• D. Crossing genes of somatic cells of some organisms.

Answer 1

The correct option is C Introducing foreign genes.

Genes of one species can be modified or genes can be transplanted from one species to another. Genetic engineering is made possible by recombinant DNA technology. Organisms that have altered genomes are known as transgenic. Most transgenic organisms are generated in the laboratory for research purposes. A transgenic organism carries in all its cells a foreign gene that was inserted by laboratory techniques. Each transgenic organism is produced by introducing cloned genes, composed of deoxyribonucleic acid (DNA) from microbes, animals or plants, into plant and animal cells. Transgenic technology affords methods that allow the transfer of genes between different species.