mutations

Changes in chromosomes or genes that cause offspring to have characteristics different from those of their parents. Mutations can be caused by the effects of chemicals, radiation , or even ordinary heat on DNA . Mutations produce some of the differences between members of a species on which natural selection acts.

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Example Sentences

Examples have not been reviewed.

Some critics argue vaccination could lead to virus mutations, but research suggests otherwise.

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The drug is suitable for those with certain gene mutations that affect up to half of people with hormone receptor positive secondary breast cancer - the most common type, which grows in the presence of oestrogen.

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Instead it looks for 130 mutations in men's DNA, each of which can increase the risk of prostate cancers developing.

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The researchers found a similar level of natural genetic mutations in the blood of the two groups - 217 frequent and 212 irregular donors.

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The CDC, for example, provides free molecular sequencing to help public health laboratories detect mutations in the bacteria early, a vital service to prevent spread of antibiotic-resistant strains.

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mutation mutation stop

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