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Understanding Blood Types and Genetics: Key Concepts and Practice

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shelby
19 diapositives · 334 Views · Sep 05, 2014

Dive into the essentials of genetics, focusing on blood types and sex-linked traits. Learn about multiple alleles and how they determine blood types (IA, IB, i). Understand how to interpret genotype results and practice applying these concepts. Explore the implications of blood type inheritance, including real-life scenarios like DNA fingerprinting to establish familial relationships. Prepare thoroughly for the upcoming genetics quiz, covering vocabulary, monohybrid and dihybrid crosses, blood type genetics, and sex-linked traits. Don't miss out on crucial study tips!

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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!!