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Biology: Molecular Genetics

Mutations create variations in a population's gene ____. blood
Ribosomes are complexes of ____ and protein. clone
A ____ is an identical genetic copy. codon
A ____ is a segment of DNA that codes for a trait. gene
A ____ is a sequence of three nucleotides in DNA or mRNA. pool
Adenine and guanine are ____ (two rings) nucleotide bases. purine
The three alleles for human ____ type are named A, B, and O. rRNA
UAG, UGA, and UAA are ____ codons. stop