Question

18. in a nucleic acid, the bases are always attached to the _____ carbon of the sugar

Answer 1

in a nucleic acid the bases are always attached to the 5 carbon of the sugar.

C6H12O6 is the formula of sugar in which 5 oH bond are attached to 5 carbon atom and - COH group is present .

Answer 2

In a nucleic acid, the bases are always attached to the 5 carbon of the sugar

Explanation:

A nucleic acid always gets attached to a pentose sugar. A pentose is a sugar molecule which is composed of 5 carbons.

But it should have to ensure that if the nucleic acid does not get attached to a pentose then except the compounds of the phosphate group, it can't get attached with others.

Now the compounds of a nucleic acid which can get attached with the phosphate group are _ adenine (A), guanine (G), cytosine (C), thymine (T), and uracil (U).

Now, observe carefully that each nucleic acid contains either 4 or 5 bases of nitrogen and it always forms a peptide bond.