AIIMS 2019 Botany Syndromes MCQ Question
Assertion: Down syndrome, Klinfelter syndrome and Turner syndrome are chromosomal disorders.
Reason: In Klinfelter syndrome females are sterile.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
Klinefelter syndrome is characterized by the presence of an extra X chromosome in males, resulting in a karyotype of 47,XXY. This chromosomal anomaly leads to various physical and developmental issues, but it does not occur in females, as they typically have two X chromosomes (46,XX). The other options are not applicable as they do not provide relevant information or alternative answers related to the question about Klinefelter syndrome specifically. Understanding the chromosomal basis of these disorders is crucial for recognizing their implications in human genetics.
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