Which of the following statements are correct?
i) A molecule that can act as a genetic material must be stable chemically only and not structurally.
ii) The unequivocal proof that DNA is the genetic material came from the experiments of Alfred Hershey and Martha Chase.
iii) The genetic material in TMV(Tobacco Mosaic Virus) is RNA.

i-F, ii-T, iii-T

• A molecule that can act as a genetic material must be stable chemically and structurally both.
• The unequivocal proof that DNA is the genetic material came from the experiments of Alfred Hershey and Martha Chase (1952). They worked with viruses that infect bacteria called bacteriophages. The bacteriophage attaches to the bacteria and its genetic material then enter the bacterial cell.
• Tobacco mosaic virus (TMV) has single stranded RNA (ss RNA) as its genetic material.