Nitrogen+Bases

= Nitrogen Bases!!! = =Definition!!! = Type of molecule that forms an important part of nucleic acid, composed of a nitrogen-containing ring structure. Hydrogen bonds between bases in opposing complementary strands link the two strands of a DNA double helix.

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= Huh? = The "rungs" in the ladder of DNA.

=The four bases!!! =
 * 1) Adenine
 * 2) Guanine
 * 3) Cytosine
 * 4) Thymine