Answer:
<h3>
Mutations are rare occurrences.</h3>
"A Mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene. A Mutagen is an agent of substance that can bring about a permanent alteration to the physical composition of a DNA gene such that the genetic message is changed."
<h3>
<u>Brainliest please!</u></h3>
Answer:
Prokaryotic cell has undeveloped nucleus but eukaryotic cell has well developed nucleus.
It is <u>TRUE</u> that multiple polypeptides joined together represents the tertiary level of protein organization.
All cells require enzymes<span> to survive and </span>function.Enzymes<span> are catalysts, which means that they make chemical reactions go faster, but are not changed by the reaction.</span>