Which trait is not sex-linked recessive?
Correct answer: C. Hypophosphatemia
- A. Hemophilia
- B. Color blindness
- C. Hypophosphatemia
- D. TFM syndrome
Explanation
Hypophosphatemic rickets is an X-linked dominant trait. The rest of the options i.e. Hemophilia, color blindness, and TFM syndrome(testicular feminization) are all X-linked recessive traits.
This question appeared on the NUMS 2017 paper, which you can sit online with every answer explained.
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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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