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NEETZoologyPrinciples of Inheritance and Variation

What type of trait is haemophilia described as?

Options

  1. AAutosomal dominant
  2. BAutosomal recessive
  3. CX-linked recessive
  4. DY-linked dominant

Correct answer

C. X-linked recessive

Step-by-step solution

Broadly, genetic disorders may be grouped into two categories – Mendelian disorders and Chromosomal disorders. Mendelian disorders are mainly determined by alteration or mutation in the single gene. These disorders are transmitted to the offspring on the same lines as we have studied in the principle of inheritance. The pattern of inheritance of such Mendelian disorders can be traced in a family by the pedigree analysis. Most common and prevalent Mendelian disorders are Haemophilia, Cystic fibrosis, Sicklecell anae

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