024a Human Genetics - Importance of genetics Understanding...

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Importance of genetics Importance of genetics Understanding hereditary diseases and to Understanding hereditary diseases and to develop new treatments develop new treatments Donor matches Donor matches Paternity Paternity Forensics Forensics Evolution Evolution
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Genetic Testing Would you want to know? Ethical concerns Cost Insurance companies see GATTACA
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Genes - genetic material on a chromosome that codes for a specific trait Genotype - the genetic makeup of the organism Phenotype- the expressed trait Allel- an alternative form of a gene
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Dominance Mechanism Two alleles are carried for each trait In true-breeding individuals, both alleles are the same ( homozygous ). Hybrids, on the other hand, have one of each kind of allele ( heterozygous ). One trait is dominant, the other trait is recessive
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Genetic Information Genes are traits “Eye color” Ear lobe connectedness Genes produce proteins Enzymes are proteins
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Homologous Chromosomes allele: specific trait allele: specific trait gene: location gene: location
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Allele Example Gene = “eye color” Alleles brown blue green lavender
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Allele Examples appearance eye color: homozygous
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Allele Examples appearance eye color: heterozygous, brown dominant over blue
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This note was uploaded on 02/13/2012 for the course BIO 10 BIO/100 taught by Professor Pamelaray during the Spring '09 term at University of Phoenix.

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024a Human Genetics - Importance of genetics Understanding...

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