What's that answer I don't understand?

If the coding part of an mrna molecule is 1800 nucleotides (bases) in length, this molecule will contain codons and code for a polypeptide that is amino acids long.

Which type of scientific statement is defined as a hypothesis or group of hypotheses that can be accepted as true based on the repeated experimentation with similar results

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.