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NEETZoologyPrinciples of Inheritance and Variation

Which disorder is characterized by a defect in blood clotting?

Options

  1. ACystic fibrosis
  2. BColour blindness
  3. CHaemophilia
  4. DPhenylketonuria

Correct answer

C. Haemophilia

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 ana

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