1 / 42

This type of genetic disorder requires both parents to “donate” a defective gene

This type of genetic disorder requires both parents to “donate” a defective gene. Autosomal recessive (2 little letters: aa , bb, ff ) found on 1 of the first 22 chromosomes. What is it called when an offspring is heterozygous for a recessive genetic disorder?. A carrier ( Dd , Hh , Aa ).

wood
Download Presentation

This type of genetic disorder requires both parents to “donate” a defective gene

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. This type of genetic disorder requires both parents to “donate” a defective gene

  2. Autosomal recessive (2 little letters: aa, bb, ff) found on 1 of the first 22 chromosomes

  3. What is it called when an offspring is heterozygous for a recessive genetic disorder?

  4. A carrier (Dd, Hh, Aa)

  5. There are no carriers for these fatal diseases. If you have one copy of this gene then you HAVE the disease

  6. Autosomal Dominant

  7. Give an example of 1 autosomal dominant disease

  8. 1- Huntington’s Chorea - like Parkinson’s where physical and mental abilities deteriorate2 - Marfan’s syndrome – Lincoln was thought to have this (very tall – usually die of heart problems)

  9. the most common genetic disorder among black people. Red blood cells are abnormally shaped

  10. Sickle cell anemia

  11. This genetic disorder is seen in all races of people and animals where pigment (color) is missing

  12. Albinism

  13. X-linked genetic disorders are carried on the X chromosome

  14. Sex linked genetic disorder

  15. With sex linked genetic disorders, why is it that boys are mostly affected?

  16. Girls have XX so if 1 X is damaged, the other chromosome dominatesBUTboys have XY so if the X is damaged, the Y cannot compensate

  17. Who is the carrier for sex linked disorders?

  18. Women are carriers of the disease – They DO NOT have it, but with each pregnancy they have a 50-50 chance of passing it on to their sons – those sons are NOT carriers

  19. Give 1 example of a sex linked disorder

  20. hemophilia (The Royal Disease of Europe), color blindness, Duchenne’s Muscular Dystrophy and Adrenoleukodystrophy (ALD)

  21. the most commonly inherited genetic disorder among Caucasian people. It produces a great deal of phlegm build up.

  22. Cystic fibrosis

  23. The universal blood donor

  24. Type O

  25. Aside from taking blood, where else can your blood type be found?

  26. Bodily fluids such as saliva, semen and vaginal secretions

  27. What are the 4 different blood types?

  28. A = IA IA or IAiB = IBIB or IBiAB = IAIBO = ii

  29. The universal blood recipient

  30. Type AB

  31. These genetic disorders are most common among people of Eastern European origin – both parents must be carriers

  32. Jewish genetic disorders such as:Tay-Sachs, Niemann-Pick, Canavan’s Disorder, Bloom’s Disease, Familial Dysautonomia and Fanconi Anemia

  33. A diagram that shows the occurrence or appearance of a particular gene or organism from 1 generation to the next

  34. Pedigree chart

  35. Name common pedigree symbols

  36. Interpret the following pedigree chart:

  37. 1 – autosomal dominant disease because the chart shows no carriers2- in generation II, three out of the 5 siblings have the disease3 – out of the generation II sibling that got married (2) who have the disease, they passed the disease to 50% of their offspring

  38. Interpret this chart:

  39. Sex linked trait (for color blindness) because most of the females are carriers and most of the males get the disorder

  40. Cross an male with type AB blood with a female who is heterozygous type A

  41. Female: IAiMale: IAIBResult:2 type A offspring: IAIA, Iai1 type AB: IAIB1 type B: IBi

More Related