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.
Complementary base pairing refers to the structural pairing of nucleotide bases in deoxyribonucleic acid, which is commonly known as DNA. DNA is made up of four nucleotide bases, each of which pairs with only one of the other bases. Continue Reading.