Which best describes how scientists found the human gene that makes insulin?

Agene in a type of bacteria when the ses bacteria reproduce asexually this mutation can only be inherited by

Natalie had random hand movements when she was two months old. when she was six months old, she used to grab a block with her whole hand. now at the age of ten months, she can grasp the same block with her thumb and forefinger. this sequence of growth in her hand and finger movements is according to the pattern.

Which codon is the code for the amino acid histidine (his)?