Answer: A substitution is a mutation that exchanges one base for another (i.e., a change in a single "chemical letter" such as switching an A to a G). Such a substitution could: change a codon to one that encodes a different amino acid and cause a small change in the protein produced.
Explanation: I know this is correct just trust me and please mark me as brainiest.
HEY mate here your answer
CoBr2 . 6 h2o = Cobalt(II) Bromide Hexahydrate
I think it is the letter A because they both Make sense
This problems answer is contact force because you are touching it
