1. Which part of the DNA codes for heredity?

A. a ribose sugar

B. a single deoxyribose sugar

C. a sequence of nitrogen bases

D. a sequence of phosphate groups

The correct answer is C a sequence of nitrogen bases.

Explanation:

DNA or deoxy ribonucleic acid is the repository of genetic information. The genetic information is stored within the nitrogen bases of DNA molecule.

The A, T, G, C are called genetic alphabets of human life. A for adenine, G for guanine, T for thymine and C for cytosine builds the basic structural backbone of DNA along with deoxyribose sugar and phosphate moiety.

The bases present in DNA are transcribed to forms the bases of mRNA and the concequetive bases of mRNA act as codon that encodes a specific amino acid during the course of translation.