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DNA
,→About DNA
: [[DNA]] is arranged in [[gene]]s that control most of our physical appearance.
: [[DNA]] has a '''double helix''' structure, which means it is shaped like twisted ladder.
: [[DNA]] is made from three four [[Nucleotide|nucleotide bases]] called [[Adenine]], [[Thymine]], [[Cytosine]], and [[Guanine]] referred to as A, T, C and G.
: The [[nucleotide]]s are arranged in complementary pairs. [[Adenine]] and [[Thymine]] pair up on opposite sides of the [[DNA]] strand. The same is true for [[Cytosine]] and [[Guanine]]. When the strand is pulled into two pieces this allows the [[DNA]] to make two exact copies of itself.