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Unit 4 Human Biology Notes

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Complete set of Unit 4 Human Biology Notes with diagrams Covers - Mutations - Gene pools - Biotechnology - Evidence for Evolution' - Hominid Evolutionary Trends

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25 Pages Complete Study Notes 1-2 Years old
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Topics this document covers:
Biology Molecular biology Mutation Genetics Population genetics Evolutionary biology Dominance Gene Point mutation Polymerase chain reaction DNA Mutagen
This is a Complete Set of Study Notes

Complete Study Notes typically cover at least half a semester’s content or several topics in greater depth. They are typically greater than 20 pages in length and go into more detail when covering topics.

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Topics this document covers:
Biology Molecular biology Mutation Genetics Population genetics Evolutionary biology Dominance Gene Point mutation Polymerase chain reaction DNA Mutagen
Sample Text:
- Mutations are the source of the altered versions of genes that provide the raw material for evolution. - Most mutations have no effect on the organism, especially among the eukaryotes, because a large portion of the DNA is non coding (does not code for proteins). - Of the mutations that do affect the phenotype, the most common effect of mutations is lethality, because most genes are necessary for life. - Only a small percentage of mutations causes a visible but non-lethal change in the phenotype. - Rarely, they can enhance the function of a protein = evolution. Germ-line V Somatic Mutation - Mutations can occur in any cell. They only affect future generations if they occur in the cells that produce the gametes: these are “germinal” or “germ line” mutations. - Somatic cell mutations occur only in the affected body cell and the daughter cells produced by mitosi...
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