How many pairs of nitrogenous bases pairs are found in human DNA?

1 Answer
Aug 16, 2016

Base pairs found in human DNA, are two complementary nitrogen rich organic molecules connected by hydrogen bonds.

Explanation:

These are found in double stranded DNA and RNA, where the bond between them connects the two strands making the double stranded helix possible.

DNA contains 4 bases ---
Adenine , Guanine ( purines )
and
Cytosine, Thymine ( pyrimidines)

Adenine bonds only with Thymine, and
Guanine bonds only with Cytosine.
In RNA Thymine is replaced with Uracil.

The number of base pairs is equal to the number of nucleotides in a strand.

Base pairs are a measure of individual genes within a DNA molecule.
The human genome is made up of about 20,000 to 25,000 genes
( which are roughly three billion base pairs).