The universal genetic code is comprised of 64 codons that encode the 20 possible amino acids that are joined together to produce proteins. What comprises a codon?

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.

multiply it by 5 in order for you to understand i cant give an exact answer.

links? do you have a link? i don't see anything?

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.