Anthro Week 4 Lecture Notes

Anthro Week 4 Lecture Notes - the erroneous replacement of...

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Understanding Mutation Mutation: a change in DNA occurring to a chromosome or to a gene Types of mutation chromosomal mutation gene mutation
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Understanding Mutation Types of Chromosomal Mutation Polyploidy : duplication of the entire genome Aneuploidy : deviation from the standard number of chromosomes Inversion : rearrangement of DNA within a chromosome Translocation : section of one chromosome is detached and joined to another Duplication : a section of a chromosome is duplicated Deletion : a section of a chromosome if deleted
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Understanding Mutation Point mutation (base pair substitution)
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Unformatted text preview: the erroneous replacement of one nucleotide Understanding Mutation Frameshift mutation the insertion or deletion of a nucleotide Understanding Mutation The concept of polymorphism A polymorphism is a genetic variant that appears in at least 1% of the population By setting the cutoff at 1%, it excludes spontaneous mutations that may have occurred in and spread through the descendants of a single family. Understanding Gene Drift Gene drift : Random changes in the frequency of alleles over time within a population due to chance...
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Anthro Week 4 Lecture Notes - the erroneous replacement of...

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