|Cytosine (C) and thymine (T) are ____ nucleotide bases.
|In DNA, adenine forms two hydrogen bonds with ____.
|During replication, ____ separates the DNA strands.
|Gene ____ results in the production of protein or RNA.
|The primary structure of a protein is its ____ sequence.
|A mutation can be an insertion, deletion, or ____ of nucleotides.
|A protein's amino acid sequence determines its ____.
|A change in the sequence of a chromosome is a ____.