The Use of Proflavin-Induced Mutations (Like FCO)in the RII Genome

question 18

Multiple Choice

The use of proflavin-induced mutations (like FCO) in the rII genome was found to experimentally support a three-nucleotide explanation for the genetic code because:

• A)an insertion mutation could be suppressed by a deletion mutation.
• B)the rII genes are easier to mutate than other genes.
• C)proflavin was an inexpensive mutagenic compound.
• D)a gene with three insertions or three deletions could sometimes provide a functional protein.
• E)the rII gene encoded a protein with exactly the correct number of amino acids,as would be explained by a three nucleotide genetic code.

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Definitions:

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