Mutations are disruptions in the human body
I would say D narrow temperature. Most other planets are too hot or cold to sustain life.
Amino acid reactions. Amino acids via their various chemical functionalities can undergo numerous chemical reactions.
Answer:
In all organisms, the instructions for specifying the characteristics of the organism are carried in DNA, a large polymer formed from subunits of four kinds (A, G, C, and T). ...
Most of the cells in a human contain two copies of each of 22 different chromosomes. ...
Changes in DNA (mutations) occur spontaneously at low rates.
