In "on the mode of communication of cholera", author John Snow argues that chili area spreads by person to person transmission. How does he unfold his analyst? What details does he rely on most to support his claim

Okay, biology isn't exactly my strongest subject (it never has been), but i'm pretty sure the answer is nucleotides. dna is made up of nucleotides. each nucleotide contains a phosphate group, a sugar group, and a nitrogen base. there are four different nitrogen bases: adenine (a), thymine (t), guanine (g), and cytosine (c). a always pairs with t, and g always pairs with c.

Im sure its the answer is  4 1 2 3 thats hope i