释义 |
point mutation in American EnglishnounGenetics a change in a single base in a nucleotide sequence Examples of 'point mutation' in a sentencepoint mutation Certainly step by step everything's just a point mutation and things change.There is an intentional mismatch for the point mutation that causes the disease.This in vitro experiment corrected a point mutation in the enzyme tyrosinase, involved in making melanin and in pigmentation.It is mathematically improbable, however, that any two cancer patients have exactly the same set of point mutations.Before this new technique, genetic mapping involved point mutations, where locating a single mutation was exceedingly tedious. |