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NEETZoologyPrinciples of Inheritance and Variation

What causes Turner’s Syndrome?

Options

  1. APresence of an extra X chromosome
  2. BPresence of an extra Y chromosome
  3. CAbsence of one X chromosome
  4. DPresence of an additional chromosome 21

Correct answer

C. Absence of one X chromosome

Step-by-step solution

Such a disorder is caused due to the absence of one of the X chromosomes , i.e., 45 with X0, Such females are sterile as ovaries are rudimentary besides other features including lack of other secondary sexual characters

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