[postquote quote=30486]
Har Socialdemokratiet da ringet dig op?
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Dette svar blev ændret 4 år siden af knekker.
Dette svar blev ændret 4 år siden af knekker.
Dette svar blev ændret 4 år siden af knekker.
A harmful, or deleterious, mutation decreases the fitness of the organism. Many, but not all mutations in essential genes are harmful (if a mutation does not change the amino acid sequence in an essential protein, it is harmless in most cases).
A beneficial, or advantageous mutation increases the fitness of the organism. Examples are mutations that lead to antibiotic resistance in bacteria (which are beneficial for bacteria but usually not for humans).
A neutral mutation has no harmful or beneficial effect on the organism. Such mutations occur at a steady rate, forming the basis for the molecular clock. In the neutral theory of molecular evolution, neutral mutations provide genetic drift as the basis for most variation at the molecular level. In animals or plants, most mutations are neutral, given that the vast majority of their genomes is either non-coding or consists of repetitive sequences that have no obvious function ("junk DNA").
Zero = Lethal (Harmfull) Less than one = Deleterious One = Neutral More than one = AdvantageousKilde: https://en.wikipedia.org/wiki/Mutation
Dette svar blev ændret 4 år siden af StultusX2.
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