Klinefelter and XYY Syndrome: Types of Sex Chromosome Aneuploidy


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Why do boys with Klinefelter syndrome produce less testosterone?

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1. Which syndrome involves having two or more X chromosomes and one Y chromosome?

2. Which syndrome occurs when a boy has one X chromosome but two Y chromosomes?

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About This Quiz & Worksheet

This quiz will assess what you know about Klinefelter and XYY syndrome. It will also review the condition these syndromes are related to.

Quiz & Worksheet Goals

In order to complete this quiz you will need to identify syndromes that involve having:

  • Two or more X chromosomes and one Y
  • One X chromosome and two Ys
  • Low amounts of testosterone

Skills Practiced

You will also be focusing on building up your skills in these areas:

  • Reading comprehension - ensure that you draw the most important information from the related lesson on Klinefelter and XYY syndrome
  • Interpreting information - verify that you can read information regarding the condition that involves having more or less than two sex chromosomes and interpret it correctly
  • Knowledge application - use your knowledge to answer questions about the syndrome that can lead to a boy being very tall for his age

Additional Learning

Klinefelter and XYY syndrome are taught in more detail in the lesson that is associated with this quiz, titled Klinefelter and XYY Syndrome: Types of Sex Chromosome Aneuploidy. Access this lesson and you'll be learning about:

  • Developmental effects of Klinefelter syndrome
  • Causes of Klinefelter and XYY syndrome
  • Similarities and differences between Klinefelter and XYY syndrome