Which of the following would be unlikely to result in a mutation being inherited

Question

Which of the following would be unlikely to result in a mutation being inherited by either of the daughter cells: Failure to correct a transition during either proofreading or mismatch repair An error caused by primase failing to road the template DNA properly Tautomerization of cytosine during DNA replication All of the above Conversion of C to G is an example of a Transition Transversion Tautomerization Pyrimidine dimer Which of the following a NOT TRUE regarding genes? A gene encodes only a single protean Both Eukaryotes and bacteria have rRNA and tRNA genes A gene in bacteria may encode multiple proteins There is no single, unambiguous definition of gone

Explanation / Answer

1. All of the above

2. Transversion

Transitions are interchanges of two-ring purines (A G) or of one-ring pyrimidines (C T): they therefore involve bases of similar shape. Transversions are interchanges of purine for pyrimidine bases, which therefore involve exchange of one-ring and two-ring structures.

3. A gene encodes only a single protein

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