All daughters of an affected father, but none of his sons are affected in the case of:
Correct answer: A. X - linked dominant traits
- A. X - linked dominant traits
- B. Y - linked dominant traits
- C. X - linked recessive traits
- D. Y - linked recessive traits
Explanation
Sons receive a Y-chromosome from the father and an X-chromosome from the mother. Whereas daughters receive X-chromosomes from both parents.
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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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