Nucleotides in a row on mRNA determine a specific amino acid in the polypeptide

This statement is true. Nucleotides in the mRNA strand determine a specific amino acid, and its position, in the polypeptide.

Explanation:

Messenger RNA (mRNA) contains the information it has received from the DNA transcription, arranged in a nucleotide sequence, necessary to perform protein synthesis.

The sequence of nitrogenous bases in the mRNA can be distributed in trios of bases, called triplets or codons. Each of the codons encodes an amino acid, the beginning of the synthesis of a polypeptide or the completion of such synthesis. The order in which the nucleotides are found also determines the order or sequence of amino acids in a polypeptide.

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.