NCERT · Class 12 · Biology · Principles of Inheritance and VariationWhich of the following is an example of an X-linked recessive trait in humans?
Step-by-Step Solution
Hemophilia and red-green color blindness are classic examples of X-linked recessive disorders.
Detailed Options Breakdown
Option : Phenylketonuria
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Principles of Inheritance and Variation.
Option 1: Down's syndrome
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Principles of Inheritance and Variation.
Option 2: Hemophilia (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 3: Sickle-cell anaemia
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Principles of Inheritance and Variation.
💡 Study Guide: This question tests core syllabus concepts from Principles of Inheritance and Variation. For formulas, key summaries, and mock exam reference guides, read the full Principles of Inheritance and Variation Revision Notes.