The phrase "a previous mutation" is correct and usable in written English.
It can be used when referring to an earlier change or alteration in a genetic context or other fields where mutations are relevant.
Example: "The study focused on the effects of a previous mutation that had been identified in the gene sequence."
Alternatives: "an earlier mutation" or "a prior mutation".
Of course he is, Robamaney created it in a previous mutation as Governor Romney and he, Robamaney argued passionately during the debate, was best friends with Democrats in his state.
Of course he is, Robamaney created it in a previous mutation as Governor Romney and he, Robamaney argued passionately during the debate, was best friends with Democrats in his State.
Interestingly, this gene pair was removed in the mutation accumulation line, suggesting that a previous mutation might have rendered the toxin in that line inactive.
Mutations were then randomly distributed across individuals, chromosomes and loci and they switched allele 1 to allele 2. If a mutation occurred at a position where a previous mutation had already occurred, this allele was allowed to return to its previous state (i.e., 1) instead of choosing another position for the mutation but this rate of reverse mutation was very low.
In 16 patients with wt plasma sample, a previous mutations in the tumour had been detected, whereas only one patient had a detectable plasma KRAS mutation not previously found in the tumour.
Rather than determining future inputs based only on the current generation of inputs (as do current fuzzers), reinforcement learning-based fuzzers will consider all previous mutations, finding program-specific patterns of mutations to ensure more complete code coverage.
A reexamination of mother DNA confirmed only the previous mutation but a more extensive study of her daughters indicated that two of them carry two mutations, the maternal mutation and another previously described missense mutation, p.R321H [ 22], inherited from their father.
However, when the mutation rate is very high, a population might experience a new mutation when it is still in a non-equilibrium state triggered by the previous mutation.
In a previous study, mutation of the conserved histidine residue (H255I), or the first glycine residue in the conserved G box (G400A), was shown to eliminate VirS function [18].
In a previous study, mutation of the Lpa active site residue K159 to alanine was found to result in partial activity, while the S235A and S259A mutants were found to be inactive [9].
Previous mutation models are no longer appropriate and a new model is proposed.
