The triplet code can produce 64 possible codon combinations. what is an advantage of this? a. every single codon specifies more than one amino acid. / b. every single amino acid has more than one codon. / c. the first two bases of the codon specify the amino acid.

The answer is B. Every single amino acid has more than one codon.

There are 20 different amino acids, but there are more than 20 combinations of three nucleotide bases on DNA. There are 64 different combinations of three nucleotide bases on DNA, which is about 3 times more than the number of amino acids. Therefore, every single amino acid has more than one codon is the right answer. But, it should be taken into consideration, that 2 out of 20 different amino acids have only one codon - methionine and tryptophan.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.