Answer and Explanation:
a) Although the DNA is made up of only four possible building blocks, these blocks are combined from a 3 (form triplets of nitrogenous bases) giving rise to a large variety of nucleotide sequences that carry a large amount of genetic information.
b) DNA is a polymer formed by nucleotides, which we could consider as the building blocks.
Each of these nucleotides is, at the same time, formed by a carbohydrate, a nitrogenous base and a phosphate group (derived from phosphoric acid). The nitrogen base may be adenine (A), thymine (T), cytosine (C) or guanine (G).
The nitrogenous bases are located in a complementary manner between the two strands of DNA, with thymine-adenine being joined by a double bridge of hydrogen and cytosine-guanine by three hydrogen bonds.
Example of questions A and B: AAA, AAT, AAC, AAG, ATT, ACC, AGG, ATA, ACA, AGA, etc.
c) In RNA the carbohydrate that is present is ribonucleic acid while in DNA it is deoxyribonucleic acid.
In addition, in the RNA, the thymine nitrogenous base is replaced by the Uracil.
