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Microsoft PowerPoint - Genetics S08_BB1

Microsoft PowerPoint - Genetics S08_BB1 - 2 Genetic...

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1 You and Your Family Health History Genetics Genetic Pedigree A visual representation of your family’s genetic history A diagram that illustrates the patterns of health and illness within a family What can you learn from your genetic pedigree? An early onset of disease The appearance of a disease in multiple individuals on the same side of the family A family member with multiple cancers or sites The presence of disease in family members who have good health habits The basics of heredity The nucleus of every human cell contains 23 pairs of chromosomes Chromosomes are made up of tightly coiled molecules of DNA Deoxyribonucleic Acid (DNA) is the genetic material passed from one generation to the next Genes, the units of heredity, are the segments of DNA that encode a protein
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2 Genetic mutations
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Unformatted text preview: 2 Genetic mutations • A mutation is an alteration in the DNA sequence of a gene • Mutations can be neutral, beneficial, or harmful to an organism and can cause a disease or disorder Genetic mutations • Single-Gene Disorders • Polygenic disorders • Multifactorial disorders Genetic Counseling and Testing • The more popular types of tests: – Diagnostic Tests – Predictive Tests – Carrier Tests – Prenatal Screening – Newborn Screening Management and Treatment of Genetic Conditions • Dietary Modifications • Medications • Environmental Adaptations • Gene Therapy Implications of Genetic Research • Medical advances and cures • Issues in genetic screening and testing • Issues of privacy and discrimination • Parental eugenics (selective breeding)...
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