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Genetics and Heredity

Genetics and Heredity. The Genetics of Blood Types:. Multiple Alleles. You MUST know this from memory!!!!!!. I A. I B. i. i. I A i. I B i. I A i. I B i. Type A:. 50%. Type AB:. 0%. Type B:. 50%. Type O:. 0%. I A. i. i. i. I A i. ii. I A i. ii. Type A:. 50%. Type AB:.

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Genetics and Heredity

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  1. Genetics and Heredity

  2. The Genetics of Blood Types: Multiple Alleles

  3. You MUST know this from memory!!!!!!

  4. IA IB i i IAi IBi IAi IBi Type A: 50% Type AB: 0% Type B: 50% Type O: 0%

  5. IA i i i IAi ii IAi ii Type A: 50% Type AB: 0% Type B: 0% Type O: 50%

  6. Blood Groups Practice You must do this individually and turn in for a daily grade

  7. Sex-Linked Traits: Traits located on the X chromosome (much more common in males)

  8. You MUST know this from memory!!!!!!

  9. XH XH Xh Y XHXh XHXh XHY XHY

  10. XH XH Xh XHXh XHXh Y XHY XHY Child with hemophilia? 0% Normal child? 100% Normal female child? 100% Male child with hemophilia? 0%

  11. XH Xh XH Y XHXH XHXh XHY XhY

  12. XH Xh XH XHXH XHXh Y XHY XhY Child with hemophilia? 25% (1/4) Child with normal blood? 75% (3/4) Male child hemophilia? 50% (1/2) Female child w/ normal blood? 100% (2/2)

  13. Sex-Linked Traits Practice You must do this individually and turn in for a daily grade

  14. Long Lost Son Blood Types & DNA Fingerprinting

  15. Part 1: Blood Type Results Genotype(s) for Mr. Cash? IAIB Genotype(s) for Long Lost Son #1? ii Genotype(s) for Long Lost Son #2? IBIB or IBi

  16. Can Long Lost Son #1 be Mr. Cash’s son? No. A person with type AB blood can never produce a child with type O blood. Can Long Lost Son #2 be Mr. Cash’s son? Yes. A person with AB blood can produce a child with type B blood.

  17. Part 2. DNA Fingerprinting Which of Long Lost Son #2’s DNA match his mother? 3 & 4 Which of Long Lost Son #2’s DNA match Mr. Cash? 1, 2 & 5 Which of Long Lost Son #2’s DNA do not match either? none

  18. Is Long Lost Son #2 Mr. Cash’s biological son? Yes. Half of his DNA comes from his mother and half comes from his father (Mr. Cash)

  19. Don’t Forget…….. Genetics Quiz next period: * Vocabulary * Monohybrid Crosses * Dihybrid Crosses * Blood Type Crosses * Sex-Linked Traits Crosses Be prepared when you come to class…. no study time!!

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