Cancer is a type of harmful mutation.
When the effects of genes add up to make the phenotype, they are called additive genes.
Answer:
Forensic drug chemists analyze samples of unknown materials including powders, liquids and stains to determine the chemical identity or characteristics of the compounds that make up the sample. Samples submitted as evidence in a drug-related case can contain one compound or a mixture of many compounds.
Explanation:
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adaptations.
Natural selection leads to traits called adaptations, which improve an organisms ability to survive and reproduce.
