1 / 20

Blood Types

Blood Types. Objective: Determine how blood types are inherited and how co-dominance applies to the ABO system. Genetics of Blood. Your blood type is established before you are born, by specific genes inherited from your parents. These two genes - one gene from your mother

shaeleigh-newman
Download Presentation

Blood Types

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. Blood Types Objective: Determine how blood types are inherited and how co-dominance applies to the ABO system

  2. Genetics of Blood • Your blood type is established before you are • born, by specific genes inherited from your • parents. • These two genes - one gene from your mother • and one from your father - determine your • blood type.

  3. Who Has What Type? source: http://www.bloodbook.com/type-facts.html

  4. Application to Medical Field

  5. Genotypes & Phenotypes • There are 4 different types of blood: • A, B, AB & O. • Blood types (phenotypes) are determined by the following allele or gene combination (genotype): • Give the genotype(s) for each blood type. • Type A = ____ ____ Type AB = ____ • Type B = ____ ____ Type O = ____ AB AO AA BO OO BB

  6. Dominant & Recessive • O is recessive • A is dominant • B is dominant • What happens if A + B?

  7. Co-dominance A B Since A & B are both dominant it is co-dominant AB A new blood type results…AB

  8. Example: Dad has Type B blood type (phenotype) because he has a B gene (blue) and an O gene (yellow) genotype. B O A B A O A Mom has Type A blood because she has an A gene (red) and an O gene (yellow) B O O O O

  9. Example: Dad has Type B blood type (phenotype) because he has a B gene (blue) and an O gene (yellow) genotype. B O A O A A B ? Type A phenotype Mom has Type A blood because she has an A gene (red) and an O gene (yellow) B O O O O Type O phenotype Type B phenotype

  10. Exercise 1: Dad has Type A blood (phenotype) because he has a A gene (red) and an O gene (yellow) A O O Mom has Type O blood (phenotype) because she has an O gene (yellow) and an O gene (yellow) genotype. O

  11. Answer Key 1: Dad has Type A blood (phenotype) because he has a A gene (red) and an O gene (yellow) A O O O A O O Type A phenotype Type O phenotype Mom has Type O blood (phenotype) because she has an O gene (yellow) and an O gene (yellow) genotype. O A O O O Type O phenotype Type A phenotype

  12. Exercise 2: Dad has Type A blood (phenotype) because he has a A gene (red) and an A gene (red) genotype A A A Mom has Type AB blood (phenotype) because she has an A gene (red) and an B gene (blue) genotype . B

  13. Answer Key 2: Dad has Type A blood (phenotype) because he has an A gene (red) and an A gene (red) genotype A A A A A A A Type A phenotype Type A phenotype Mom has Type AB blood (phenotype) because she has an A gene (red) and an B gene (blue) genotype . A B A B B Type AB phenotype Type AB phenotype

  14. Dad has Type B blood (phenotype) because he has a B gene (blue) and an B gene (blue) genotype Exercise 3: Mom has Type B blood (phenotype) because she has an B gene (blue) and an O gene (yellow) genotype

  15. Dad has Type B blood (phenotype) because he has a B gene (blue) and an B gene (blue) genotype Answer Key 3: B B B B B B B Type B phenotype Type B phenotype Mom has Type B blood (phenotype) because she has an B gene (blue) and an O gene (yellow) genotype B O O B O Type B phenotype Type B phenotype

  16. Dad has Type AB blood (phenotype) because he has an A gene (red) and a B gene (blue) genotype Exercise 4: Mom has Type A blood (phenotype) because she has an A gene (red) and an O gene (yellow)

  17. Answer Key 4: Dad has Type AB blood (phenotype) because he has an A gene (red) and a B gene (blue) genotype B A A A B A A Mom has Type A blood (phenotype) because she has an A gene (red) and an O gene (yellow) Type AB phenotype Type A phenotype B O O A O Type B phenotype Type A phenotype

  18. Dad has Type B blood (phenotype) because he has a B gene (blue) and an O gene (yellow) genotype Bonus Exercise: Mom has Type A blood (phenotype) because she has an A gene (red) and an O gene (yellow) genotype.

  19. Dad has Type B blood (phenotype) because he has a B gene (blue) and an O gene (yellow) genotype Bonus Answer Key: B O B A A O A Mom has Type A blood (phenotype) because she has an A gene (red) and an O gene (yellow) genotype. Type AB phenotype Type A phenotype O B O O O Type B phenotype Type O phenotype

  20. Optional Extension • Ask your parents if they know their blood type. • Ask your parents if they know your blood type.

More Related