The genetic code is always reada.3 bases at a time in the same direction. b.4 bases at a time in the same direction. c.3 bases at a time and the direction varies. d.4 bases at a time and the direction varies.

A. 3 bases at a time in the same direction

Explanation:

The genetic code refers to the rules guiding the synthesis of a protein molecule from the information enclosed in a gene. It encompasses all the 64 possible codons in living organisms. During translation where each codon is read to synthesize an amino acid, the genetic code reads three bases at a time since there are three bases in one codon.

These three bases are read at the same time in the same direction i.e. 5′→3′ direction of the mRNA molecule. This direction is referred to as the reading frame.

carbon atoms, hydrogen, oxygen, and nitrogen.