year 10 pathway c 2012 n.
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Year 10, Pathway C 2012. New Generations. Outcomes. Identify genetic disorders from too many/ too few body and sex chromosomes Explain how genetic disorders occur. Genetic Disorders. There are three ways to be born with a genetic disorder: 1. Too many/not enough sex chromosomes

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Presentation Transcript
outcomes
Outcomes
  • Identify genetic disorders from too many/ too few body and sex chromosomes
  • Explain how genetic disorders occur
genetic disorders
Genetic Disorders
  • There are three ways to be born with a genetic disorder:
  • 1. Too many/not enough sex chromosomes
  • 2. Too many body chromosomes
  • 3. Mutation of genes
genetic disorders1
Genetic Disorders
  • Too many sex chromosomes:
  • Klinefelter’s syndrome (male)
  • Triplo X syndrome (female)
    • Extra X chromosome
    • Infertility
    • XXY or XXX
genetic disorders2
Genetic Disorders
  • Too few sex chromosomes :
  • Turner’s syndrome
    • Only one sex chromosome (X)
    • Short stature
    • Webbed neck
genetic disorders3
Genetic Disorders
  • Too many body chromosomes results in down syndrome
    • 47 chromosomes instead of 46
    • Impairment of learning ability
    • Minor physical abnormalities
genetic disorders4
Genetic Disorders
  • What causes these?
  • Let’s investigate
genetic disorders5
Genetic Disorders
  • Genetic disorder are caused by mistakes made during meiosis
outcomes1
Outcomes
  • Identify genetic disorders from too many/ too few body and sex chromosomes
  • Explain how genetic disorders occur