The genetic code
A) is overlapping.
B) varies greatly as one goes from viruses to higher organisms.
C) contains only amino acid signals.
D) consists of 64 possible codons, all of which are known.

Question

Quizplus · Accepted Answer

The genetic code consists of 64 possible codons, all of which are known. Each codon is made up of three nucleotides and codes for a specific amino acid or signals the end of a protein chain. While there are variations in how some organisms use the genetic code, the basic set of codons and their corresponding amino acids is highly conserved across all living things. The genetic code is not overlapping, and while there are some differences in how different types of organisms use the code (such as variations in start and stop codons), the basic structure of the code is the same.

The Genetic Code