A DNA molecule is a ____ ____ held by ____ base pairs. DNA carries the ____ for making proteins. The four bases: ____, ____, ____ and ____ (A, C, G and T) make up the genetic code. A is always paired with ____ and ____ is always paired with G. The ____ determines ____ sequence in ____. A ____ is a ____ of ____ which ____ for a ____.

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