DNA is like a 1) much as the specific sequence of letters on base pairs are like 2) and 3) .
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DNA is like a ladder, it's structure is double helix much as the specific sequence on letters on base pairs are like single rung along the genetic ladder and sugar phosphate.

Explanation:

DNA or Deoxyribonucleic acids is a genetic material found in humans and other living organisms. It is located in the nucleus and sometimes it is found in the mitondondrial in small amount.

The information in DNA is stored as a code made up of four chemical bases; Adenine (A), Guanine (G) , thymine (T) and cytosine(C).

DNA replicates and make copies of it self. It is formed by based pairs attached to sugar phosphate.

a. to encourage apoptosis

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.