STD 12 - 11. organisms and populations — Biology STD 12 Science — Question

1. $ \left(\text { Kcal m}^{-3}\right) \mathrm{yr}^{-1} $
2. $ \mathrm{G}^{-2} \mathrm{yr}^{-1} $
3. $\mathrm{G}^{-1} \mathrm{yr}^{-1} $
4. $ \left(\mathrm{Kcal} \ \mathrm{m}^{-2}\right) \mathrm{yr}^{-1} $

$(a)$ $C-$peptide is not present in mature insulin.

$(b)$ The insulin produced by $rDNA$ technology has $C-$peptide.

$(c)$ The pro-insulin has $C-$peptide.

$(d)$ $A-$peptide and $B-$peptide of insulin are interconnected by disulphide bridges.

Choose the correct answer from the options given below.