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Multiple Choice
What sex chromosome combination is associated with Turner syndrome?
A
XXX
B
XY
C
XO
D
XXY
Verified step by step guidance
1
Understand that Turner syndrome is a chromosomal disorder affecting females, where one of the X chromosomes is missing or partially missing.
Recall that normal female sex chromosome combinations are XX, while normal male combinations are XY.
Recognize that Turner syndrome is characterized by the presence of a single X chromosome, often denoted as XO, where 'O' indicates the absence of the second sex chromosome.
Compare the given options: XXX, XY, XO, and XXY, and identify which one matches the description of having only one X chromosome.
Conclude that the XO combination is associated with Turner syndrome, as it represents the absence of the second X chromosome in females.