Question

Recombinant DNA research uses mostly prokaryotic bacteria and eukaryotic ............... as recipient cells because of their fast reproduction in laboratory conditions.

• A. E. coli
• B. Drosophila
• C. Yeasts
• D. Fungal hyphae

Answer 1

The correct option is C Yeasts

The basic process of recombinant DNA technology revolves around the activity of DNA in the synthesis of protein. By intervening in this process, scientists can change the nature of the DNA and of the gene make-up of an organism. By inserting genes into the genome of an organism, the scientist can induce the organism to produce a protein it does not normally produce. The genes used in DNA technology are commonly obtained from host cells or organisms called as gene libraries. A gene library is a collection of cells identified as harbouring a specific gene. For example, E. coli cells can be stored with the genes for human insulin in their chromosomes. Vaccines represent another application of recombinant DNA technology. For instance, the hepatitis B vaccine now in use is composed of viral protein manufactured by yeast cells, which have been recombined with viral genes.