intro notes

Intro notes - transcription translation •Population genetics—studies heredity in groups of individuals for traits determined by a few genes

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Why is genetics important? •Central to biology •Gene activity underlies all biological processes • Expanding rapidly—see popular press, TV Ancient past: Domestication of plants/animals- 10,000-12,000 years ago Produce more food with desirable traits- manipulated wild plants and animals Select plants and animals with desirable traits, produce offspring with same traits- “like breeds like” Genetics is important today: Agriculture- major crops and animals undergone selection Pharmaceuticals- synthesized by genetically modified fungi and bacteria Human medicine- genetic component to disease, developed diagnostic tests Genetic variation is the foundation of the diversity of all life! 4 sub-disciplines in genetics: • Transmission genetics—how genes recombine and traits are passed from generation to generation • Molecular genetics—concerns the structure and function of genes; includes replication,
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Unformatted text preview: transcription, translation •Population genetics—studies heredity in groups of individuals for traits determined by a few genes •Quantitative genetics—studies heredity in groups of individuals for traits determined by many genes simultaneously Modern genetics timeline: 1856—Charles Darwin- theory of evolution 1866—Gregor Mendel- discovered basic principles of heredity using pea plants- importance of work not discovered until 1900 Late 1800s- germplasm theory- cells in repro organs carry complete set of genetic info 1902—genes on chromosomes 1930’s— 1953—Watson and Crick-structure of DNA 1973— first recombinant DNA experiments completed 1977—DNA sequencing method developed 1983—PCR developed- polymerase chain reaction 1990—gene therapy used to treat human genetic disease , Human Genome Project launched 2000—draft of human genome 2003—...
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This note was uploaded on 03/20/2008 for the course ANS 215 taught by Professor Ashwell during the Fall '07 term at N.C. State.

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Intro notes - transcription translation •Population genetics—studies heredity in groups of individuals for traits determined by a few genes

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