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Introduction

Introduction. http:// www.youtube.com/watch?v=TG8Ect3Xn7w. Genetics. D. Ann Currie RN,MSN 2012. How can you determine possible outcomes of genetic combinations?. Eye colors Dominant vs recessive. Mom Dad Brown eyes Green eyes

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Introduction

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Presentation Transcript

  1. Introduction • http://www.youtube.com/watch?v=TG8Ect3Xn7w

  2. Genetics D. Ann Currie RN,MSN 2012

  3. How can you determine possible outcomes of genetic combinations?

  4. Eye colorsDominant vs recessive Mom Dad Brown eyes Green eyes Br/b (hybrid) G/b(hybrid) Br/G------ Br/b----- G/b-----b/b Children Eye Colors Brown Brown Green Blue

  5. Type/Rh examples • Mom Dad • O /Positive( Pos/neg.) O/Positive( Pos/neg.) • hybrid hybrid • Children • O/Positive(Pos/pos)---O/Pos(Pos/neg.)---- • 25% 50% hybrid • O/Pos (Pos/neg. )--O/negative. (neg./neg.) • 25% • 100% 0 type blood

  6. Recessive Trait • Mom Dad • Carrier Carrier • N/c N/c • Children • N/N------N/c-------N/c-------c/c • Normal carrier carrier condition • 25% 50% carrier 25%

  7. Recessive Trait • Mom Dad • Carrier Normal • N/c N/N • Children • N/N--------N/N------N/c--------N/c • 50% 50% • normal Carriers • 0% Condition

  8. Sex-linked/x-linked Conditions • Mom Dad • X/Xh X/Y • carrier normal • Children • X/X -------X/Y-------Xh/X------Xh/Y • 25% 25% 25% 25% • normal normal carrier condition • female male female male

  9. Dominant Trait • Mom Dad • D/n n/n • Children • D/n----D/n-----n/n------n/n 50% 50% condition normal

  10. Dominant Trait • Mom Dad • D/n D/n • Children • D/D----D/n------D/n -----n/n • 75% 25% • Condition normal

  11. Dominant Trait • Mom Dad • D/D D/n • Children • D/D-----D/n-----D/D----------D/n • 100% condition

  12. The End • Questions? http://www.youtube.com/watch?v=TG8Ect3Xn7w

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