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The genotype of a person with Turner’s syndrome will be: - Biology (Theory)

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प्रश्न

The genotype of a person with Turner’s syndrome will be:

विकल्प

  • 44 + XXY

  • 44 + XYY

  • 44 + XO

  • 44 + XXYY

MCQ
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उत्तर

44 + XO

Explanation:

Turner’s syndrome is caused by the presence of only one X chromosome and no second sex chromosome (monosomy X), resulting in a total of 45 chromosomes (44 autosomes + XO). Individuals with Turner’s syndrome are genetically female but sterile, with underdeveloped ovaries, and present characteristic physical features such as a webbed neck and broad chest. This condition arises due to nondisjunction during gamete formation leading to monosomy of the X chromosome.

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अध्याय 5: Principles of Inheritance and Variation - Test Your Progress [पृष्ठ २००]

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नूतन Biology [English] Class 12 ISC
अध्याय 5 Principles of Inheritance and Variation
Test Your Progress | Q 1. 91. | पृष्ठ २००
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