Answer: High humidity, warm temperatures and high pressure
<span>Codon. The genetic code comprises
of all the codons in the genome. Codons, other than the stop codons, code for
20 amino acids. Codons, that are comprises of three nucleotides, have a possible
64 combination from permutation computation.
61 of these combiantions code for proteins while the rest stop
translation. </span>
Do you mean by-product? Because in that case no. Oxygen is not a by-product of the Krebs Cycle, but Carbon Dioxide is.