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In Klinefelter syndrome, individuals are phenotypically male, but they have reduced sperm production and may have some breast development in adolescence. The cells of Klinefelter individuals have two X chromosomes and one Y (they are XXY instead of XY). This occurs because of what meiotic error?

User Megan
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1 Answer

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Answer:

List of options to choose from to complete the question:

A. Aneuploidy

B. Polyploidy

C. Translocation

D. Monosomy

E. Duplication

The CORRECT ANSWER IS A.

A. Aneuploidy.

Step-by-step explanation:

Aneuploidy results from unusual number of chromosomes in a cell, e.g a human cell with 45 or 47 chromosomes other than 46.

It's mostly seen in Trisomy e.g. trisomy 21 (Down syndrome), trisomy 13 (Patau syndrome) and trisomy 18 (Edwards syndrome).

User Dana Cartwright
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