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NEETZoologyPrinciples of Inheritance and Variation

Read the following Assertion and Reason and choose the correct option. Assertion: Mendelian disorders are mainly determined by alteration or mutation in the single gene. Reason: Most common and prevalent Mendelian disorders are Haemophilia, Cystic fibrosis, Sickle-cell anemia, Colour blindness, Phenylketonuria, Thalassemia, etc.

Options

  1. ABoth Assertion and Reason are true and Reason is correct explanation of Assertion
  2. BBoth Assertion and Reason are true but the Reason is not the correct explanation of Assertion
  3. CAssertion is true but the Reason is false
  4. DBoth Assertion and Reason are false

Correct answer

B. Both Assertion and Reason are true but the Reason is not the correct explanation of Assertion

Step-by-step solution

Mendelian disorders are mainly determined by alteration or mutation in the single gene. Most common and prevalent Mendelian disorders are Haemophilia, Cystic fibrosis, Sickle-cell anemia, Colour blindness, Phenylketonuria, Thalassemia, etc.

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