Open the combination lock using the old combination. Remove the u-bar from the lock body so it's in the Unlock position. Use a screwdriver to open the anti-dust cover on the back of the combination lock. Align the old combination numbers to the guide points.
A base pair (bp) is a unit consisting of two nucleobases bound to each other by hydrogen bonds. They form the building blocks of the DNA double helix, and contribute to the folded structure of both DNA and RNA.
DNA (also known as deoxyribonucleic acid) is the genetic material of a cell; it is. composed of 3 billion base pairs, the bases are adenine, guanine, cytosine and thymine. When three bases are paired together, they form amino acids and these long chains of amino.