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www.reference.com/article/uses-dna-1b7daff2bfec76e

DNA, or deoxyribonucleic acid, is used in the human body in order for an organism to reproduce, develop and survive as well as in science for genetic engineering, forensics, bioinformatics, evolutionary history and information storage. A human's DNA code contains about 3 billion bases and 20,000 gen

www.reference.com/article/can-dna-found-b5ed2f0bb2aa9bd6

The majority of DNA is located in the cell nucleus, where it is called nuclear DNA. A small amount is located in the mitochondria, where it is called mitochondrial DNA.

www.reference.com/article/dna-made-2eb4ff7c3e0e8395

DNA is made of repeating units called nucleotides. The four nucleotides in DNA are adenine, cytosine, guanine and thymine. Adenine binds with thymine, and guanine binds with cytosine.

www.reference.com/science/function-dna-human-body-78e670164570498

The function of deoxyribonucleic acid (DNA) is to give genetic instruction to organic beings. DNA stores information to tell cells how to function, passing it on to the next generation of life through cells. It also helps in development.

www.reference.com/science/much-dna-typical-human-cell-152043608773550f

The human genome present in the nucleus of nearly all cells within the body is composed of 3.2 billion base pairs. If unwound, this DNA would stretch to about 6 feet.

www.reference.com/article/dna-work-30af3154f462462d

DNA works by storing information that tells the body how to develop, survive and reproduce cells. DNA sequences are made up of four types of nucleotides: adenine, thymine, cytosine and guanine. Information in DNA is stored by the ordering of bonded nucleotides and resides in pieces of DNA called gen

www.reference.com/science/total-length-human-dna-642a35ab69e81fa9

Human DNA is approximately an average of 6 feet, 6 inches in total length. There are roughly 3 billion base pairs in this length, and it is divided into 23 chromosomal pairs.

www.reference.com/science/causes-genetic-variation-7a8bc86774e1ec1d

Genetic variation is the result of mutation, gene flow between populations and sexual reproduction. In asexually reproducing organisms, some genetic variation may still result from random mutation.

www.reference.com/article/genetic-variation-fd74214c2b736c93

Genetic variation generally refers to the differences in genes between individual members of a population, or the frequency in which the various gene types are expressed. Genetic variation is incredibly important for the survival and adaptation of a species, as it helps in terms of natural selection

www.reference.com/science/genetic-variation-important-670d90b1826491ee

Genetic variation is important because a population has a better chance of surviving and flourishing than a population with limited genetic variation. Genetic diversity also decreases the occurrence of unfavorable inherited traits.