gs1medium
With reference to the recent developments in science, which one of the following statements is not correct?
- A.Functional chromosomes can be created by joining segments of DNA taken from cells of different species.
- B.Pieces of artificial functional DNA can be created in laboratories.
- C.A piece of DNA taken out from an animal cell can be made to replicate outside a living cell in a laboratory.
- D.Cells taken out from plants and animals can be made to undergo cell division in laboratory petri dishes.
▶ Answer & Explanation
Correct answer: A. Functional chromosomes can be created by joining segments of DNA taken from cells of different species.
Recombinant DNA technology allows for the manipulation and joining of DNA segments, but creating functional chromosomes by combining DNA from different species is beyond current capabilities. Artificial DNA synthesis and gene cloning, enabling replication of DNA outside living cells, are established biotechnological processes. Furthermore, cell culture techniques permit the division of plant and animal cells in laboratory settings.
Source: UPSC gs1 2019