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A string of several hundred adenine nucletodies added to the 3' end of the eukaryotic mRNA.
the remaining parts of the RNA that are spliced (after the removal of the introns) to form functional mRNA called (?)
changes ONE triplet on DNA, resulting in a single codon change, which may or may not affect the resulting protein
frame shift mutation
one or more nucleotides are added or removed from the DNA, which causes a shuffling and re-organization of every triplet following the mutation. this results in multiple codon changes, and inevitably a different-looking protein.
a single nucleotide is changed, resulting in a codon that codes for a different amino acid. this can render the resulting protein nonfunctional.
changes an amino acid to a premature stop codon, rendering the resulting protein nonfunctional
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