a Can RNA act as the genetic material If so give an example

a.) Can RNA act as the genetic material? If so, give an example.

b.) Below is a list of several phenomena relating to protein structure. Clearly describe each phenomenon, the conditions under which each occurs, and the probable influence each has on protein structure.

- Hydrophobic interactions

- Hydrogen bonds

- Disulfide bridges

Solution

A.

RNA is the genetic material in viruses was established by A.Gierer and G.Schramm.in 1956 with the experiments conducted on tobacco plant by TMV virus .

There were many viruses contains RNA as genetic material.

Eg.; hepatitis C virus, TMV virus, rubiviruses, tobraviruses, picornaviruses, potyviruses, sobemoviruses etc.

B. Under physiologic conditions, the Tertiary Structure of proteins hydrophobic side-chains of neutral, non-polar amino acids such as phenylalanine or isoleucine tend to be buried on the interior of the protein molecule because of their hydrophobicity. Acidic or basic amino acid side-chains generally open on the surface of the protein as they are hydrophilic.

the hydrogen bon makes the tertiary and quaternary structure stable.

the di sulfied bond stabilize the alpha helical secondary structure of protein as well as tertiary and quaternary structure of protein.