The codon TCA codes for serine in a gene. If a new mutation occurred the replaced the "A" with "T" resulting in the production of the same amino acid this mutation would be a mutation and its fate over many generations would most likely be determined by

The correct answer is "silent; codon usage".

Explanation:

Silent mutations are changes in the genome sequence that do not result in any observable change in the phenotype of the individual. A common silent mutation is the change of a nucleotide in a codon that results in another codon that is translated into the same amino acid. The fate of silent mutations over many generations is determined by the codon usage of the species. If the silent mutation results is a codon that is not normally used by the species, it is very likely that it will get lost over time.

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.