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(1992) Matt McCoy (front) and Mark Bodee extract DNA from fetal tissues and blood and semen stains at Cellmark Diagnostics in Germantown, Maryland. ). DNA consists of two sugar- phosphate backbones, arranged in a double helix, linked by nucleotide bases. There are 4 types of base; adenine (A), cytosine (C), guanine (G) and thymine (T). Sequences of these bases make up genes, which encode an organism's genetic information. DNA Fingerprinting. MODEL RELEASED.

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USA_SCI_DNA_26_xs.jpg
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© Peter Menzel www.menzelphoto.com
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DNA Fingerprinting
(1992) Matt McCoy (front) and Mark Bodee extract DNA from fetal tissues and blood and semen stains at Cellmark Diagnostics in Germantown, Maryland. ). DNA consists of two sugar- phosphate backbones, arranged in a double helix, linked by nucleotide bases. There are 4 types of base; adenine (A), cytosine (C), guanine (G) and thymine (T). Sequences of these bases make up genes, which encode an organism's genetic information. DNA Fingerprinting. MODEL RELEASED.
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