NEET · BiologyHard
In a hypothetical organism, the DNA polymerase III enzyme has a mutation that increases its error rate to in nucleotides. If a gene is base pairs long, what is the probability that a single replication event produces a perfectly accurate copy of this gene?
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: A —
Solution
- The probability of a correct base insertion is .
- The probability of a correct gene copy is .
- Using the limit as approaches infinity, we set .
- The probability is approximately .
- Hence the answer is (A).
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