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CH 1 advanced interactions N 2

This resource explores the concept of multiple alleles in genetics, specifically focusing on human blood types. It details how alleles can exist in various forms but each organism has only two forms of each gene. The descriptions of blood types (A, B, AB, O) are tied to specific genotypes and phenotypes, along with their distribution ratios in the population. Practical scenarios and examples illustrate how blood group inheritance works, such as the possible phenotypes of children based on their parents' blood types.

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CH 1 advanced interactions N 2

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  1. CH 1 advanced interactions N 2 Name Period

  2. 1. Multiple Alleles: -some ALLELES exist in more than 2 forms (each organism still has ONLY 2 forms of each gene, regardless of how many are in the genome)

  3. 2. Human Blood Types A B O GENOTYPE PHENOTYPE GENOTYPE PHENOTYPE

  4.     TYPES     DISTRIBUTION RATIOS O + 1 person in 3 38.4%      O - 1 person in 15 7.7%      A + 1 person in 3 32.3%      A - 1 person in 16 6.5%      B + 1 person in 12 9.4%      B - 1 person in 67 1.7%     AB + 1 person in 29 3.2%     AB - 1 person in 167 0.7%

  5. practice • Mom is homozygous for type A blood, while Dad heterozygous type B. What are the possible phenotypes of their children?

  6. Practice 2. What are the PHENOTYPE % of a type AB mom crossed with a heterozygous type B dad?

  7. 3. What are phenotype % for a cross between: heterozygous type A mom and a heterozygous type B dad?

  8. 1. Blood group of mother: AB / Blood Group of Child: A / Man exonerated if he belongs to blood groups ______________ 2. Blood group of mother: O / Blood Group of Child: B / Man exonerated if he belongs to blood groups ______________3. Blood group of mother: A / Blood Group of Child: AB / Man exonerated if he belongs to blood groups ______________4. Blood group of mother: O / Blood Group of Child: O / Man exonerated if he belongs to blood groups ___________5. Blood group of mother: B / Blood Group of Child: A / Man exonerated if he belongs to blood groups ______________

  9. 1. Blood group of mother: AB / Blood Group of Child: A / Man exonerated if he belongs to blood groups ______________

  10. 2. Blood group of mother: O / Blood Group of Child: B / Man exonerated if he belongs to blood groups ______________

  11. 3. Blood group of mother: A / Blood Group of Child: AB / Man exonerated if he belongs to blood groups ______________

  12. 4. Blood group of mother: O / Blood Group of Child: O / Man exonerated if he belongs to blood groups ___________

  13. 5. Blood group of mother: B / Blood Group of Child: A / Man exonerated if he belongs to blood groups ______________ • 1) A 3) AB • 2) B 4) O

  14. 1. The father could be any blood group.2. Father of the child must be B or AB. (Not the father if he is A or O)3. Father must be B or AB (not A or O)4. Father cannot be AB 5. Father must be A or AB (Not B or O)

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