Mutation is the primary cause of all genetic variation. Mutation is important as the first step in evolution, as it produces a new sequence of DNA for a particular gene, producing a new allele. Recombination, through intragenic recombination, may also generate a new DNA sequence (a new allele) for a particular gene.
<span>The California high-speed rail is such a groundbreaking effort because it helps with the environment and makes it cleaner. </span>
Answer:standard amino acids is an amino acid used in the synthesis of peptides
Explanation: There are twenty standard amino acids which are
ALA, ARG, ASN, ASP, CYS, GLN,GLU,GLY,
