1 / 14

New Generations

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

heather-noble
Télécharger la présentation

New Generations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Year 10, Pathway C 2012 New Generations

  2. Outcomes • Identify genetic disorders from too many/ too few body and sex chromosomes • Explain how genetic disorders occur

  3. 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

  4. A normal karyotype

  5. Genetic Disorders • Too many sex chromosomes: • Klinefelter’s syndrome (male) • Triplo X syndrome (female) • Extra X chromosome • Infertility • XXY or XXX

  6. Klinefelter’sKaryotype

  7. Genetic Disorders • Too few sex chromosomes : • Turner’s syndrome • Only one sex chromosome (X) • Short stature • Webbed neck

  8. Turner Syndrome Karyotype

  9. Genetic Disorders • Too many body chromosomes results in down syndrome • 47 chromosomes instead of 46 • Impairment of learning ability • Minor physical abnormalities

  10. Down syndromkaryotype

  11. Genetic Disorders • What causes these? • Let’s investigate

  12. Genetic Disorders • Genetic disorder are caused by mistakes made during meiosis

  13. Genetic Disorders – The cause

  14. Outcomes • Identify genetic disorders from too many/ too few body and sex chromosomes • Explain how genetic disorders occur

More Related