A protein chain has the following amino acids residues. Show and label the interactions that can be present in various pairs from these giving rise to tertiary level structure of protein.

What is the single term that answers all the following questions?

• What decides whether you are blue eyed or brown eyed?
• Why does wheat grain germinate to produce wheat plant and not rice plant?
• Which acid molecules are present in nuclei of living cells?

Draw structural formulae of nucleosides formed from the following sugar and base.

D -ribose and guanine

Draw structural formulae of nucleosides formed from the following sugar and base.

D-2-deoxyribose and thymine

${\mathrm{CH}}_2\mathrm{OH}-\mathrm{CO}-(\mathrm{CHOH}{)}_4-{\mathrm{CH}}_2\mathrm{OH}$ is an example of