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Biology: Molecular Genetics Quiz

The cutting of pre-mRNA into mRNA is catalyzed by ____. alleles
The sequences of a gene that remain in mRNA are ____. exons
Purines have two ____, whereas pyrimidines have one. histones
The non-coding sequences of a gene or pre-mRNA are ____. introns
Different forms of the same gene are called ____. mutations
Exposure to ultraviolet or ionizing radiation can cause ____. nucleotides
In chromatin, DNA is spooled around proteins called ____. rings
Nucleic acids (DNA and RNA) are polymers of ____. spliceosomes