Which of the following example of human inheritance is explained by multiple alleles on an autosomal chromosome?
Correct answer: A. The ABO blood group system
- A. The ABO blood group system
- B. Cystic firbrosis
- C. Down's syndrome
- D. Haemophilia
Explanation
The ABO blood group system is controlled by multiple alleles on autosomal chromosomes, resulting in different blood types.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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