Nucleotide substitutions in a gene occur at a relatively constant rate.
A nonsynonymous substitution is a nucleotide mutation that alters the amino acid sequence of a protein. Nonsynonymous substitutions differ from synonymous substitutions, which do not alter amino acid sequences and are (sometimes) silent mutations.
Answer:when you need to replace cells that are old lost or broken
Explanation:
Clonal selection identifies a __ lymphocyte that needs to be cloned for production of a specific antibody.
is B.
Is there anything specific that you need or just any types of antibiotics??
Prokaryotic cells reproduce asexually which makes it easier for them to multiply because all they have to do is split in half where as eukaryotic cells reproduce sexually so they have to find another cell to meet with in order to reproduce.
