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Diseases Associated with Sex Chromosomes
Reproduction and Genetics
"This quiz is about disorders and conditions associated with the sex chromosomes - the X and Y chromosomes that determine one's gender."
15 Points Per Correct Answer - No time limit
Which sex-linked disorder is characterised by abnormal bleeding and failure of the blood to clot?
Which sex-linked disorder is also known as daltonism?
Which of the following diseases is a sex-linked disease characterised by marked weakness and wasting of the muscles?
carpal tunnel syndrome
After Down's syndrome, which sex-linked disorder is the most common genetic cause of mental retardation?
fragile X syndrome
Colour-blindness is a sex-linked disorder. Patients are tested for colour-blindness with the use of a series of pictures made up of coloured dots. What is the name of this test?
Snellen colour test
Ishihara colour test
Kawasaki colour test
Hashimoto colour test
Almost all sex-linked disorders are carried on the X-chromosome. Why are Y-linked disorders so rare?
because you have to inherit two Y-chromosomes for a disease to show up
because the genes on the Y-chromosome are always masked by other genes
because only the X-chromosome is genetically active
because the Y-chromosome carries very few genes
Other than determining the male gender, which human condition is known to be determined by genes carried on the Y-chromosome?
Turner's syndrome is caused by the absence of one of the sex chromosomes. Which of the following statements is NOT true about patients with Turner's syndrome?
they are hermaphrodites (have both male and female reproductive organs)
they are infertile
they are always female
they are usually very short in stature
Klinefelter's syndrome is a genetic defect in which the patient has three sex chromosomes. Which of the following patterns best describes the typical patient with this disorder?
XXY (patient appears to be male)
XXY (patient is a hermaphrodite - has both male and female sex organs)
XYY (patient is male)
XXX (patient is female)
Which sex-linked disease has affected most of the royal families in Europe?
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Compiled Jun 28 12