Short Answer TypeWhat do you mean understand by tertiary structure of proteins? Mention the forces involved informing these structures.
Long Answer TypeName the product obtained on complete hydrolysis of DNA. Enumerate the structural differences between DNA and RNA. In what way is a nucleotide different from a nucleoside? Illustrate with examples.
What are nucleic acids? Explain their role in replication.
Nucleic acids are biomolecules which are present in the nucleus of living cells. There are two types of nucleic acids namely DNA (deoxyribo nucleic acid) and RNA (ribonucleic acid). The nucleic acids direct the synthesis of protein and are responsible for genetic information.
The process by which identical DNA molecules are synthesized from DNA molecules is called replication. As the cell divides the two strands of DNA are produced zip by zip from the double helix. These strands act as templates for the synthesis of new strands. The new strand is complementary to its parent strand. Now, the parent strand joins the new complementary strand and a double stranded helix of a new DNA is formed which is a true copy (replica) of the mother DNA. The second parent DNA strand also forms a new DNA with its complementary new DNA strand. In this way, two identical DNA molecules are formed from one DNA molecule.
Short Answer TypeThe tertiary structure of many proteins dissolved in water is disrupted by heating above 80°C, but primary structure is unaffected. Explain.
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