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NEET 2023
Exam
NEET
Year
2023
Subject
Zoology
Chapter
Principles of Inheritance and Variation

NEET 2023 · Zoology · Principles of Inheritance and Variation

Broad palm with single palm crease is visible in a person suffering...

Broad palm with single palm crease is visible in a person suffering from-

Options

  1. AThalassemia
  2. BDown's syndrome
  3. CTurner's syndrome
  4. DKlinefelter's syndrome

Correct answer

B. Down's syndrome

Step-by-step solution

Down's syndrome:

  • This happens due to non-disjunction of chromosomes.
  • This is a trisomy of 21st chromosome (autosomal).
  • Individuals with Down syndrome are mentally retarded.
  • They have a characteristic broad face with a flat nasal bridge, wide-set eyes, and prominent epicanthic folds.
  • The hands are also broad with a single crease in the palm.
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