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Question 1

Instructions: Each group of extended matching questions consists of lettered options followed by a list of numbered problems/questions. For each numbered problem/question select the one lettered option that is most closely answers the question. You can use the lettered options once, more than once, or not at all.

Theme: Chromosome nomenclature

Options:

  1. 46,XX
  2. 46,XY
  3. 45,X
  4. 47,XXY
  5. 92,XXXX
  6. 47,XX,+21
  7. 69,XXX
  8. 48,XXXX
  9. 47,XYY

For each of the following descriptions select the correct chromosome nomenclature.

1
Scenario 1

 
Trisomy indicates the presence of 3 copies of one chromosome, as in trisomy 21, the most common chromosome abnormality found in children with Down syndrome. See Page 37.Incorrect. See Page 37.Your answer has been saved.
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2
Scenario 2

 
Monosomy indicates loss of a single chromosome as in monosomy X, the most common chromosome pattern found in Turner syndrome. See Page 38.Incorrect. See Page 38.Your answer has been saved.
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3
Scenario 3

 
Triploidy indicates the presence of 3 haploid sets of chromosomes, i.e. a total of 69 chromosomes. See Page 37.Incorrect. See Page 37.Your answer has been saved.
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4
Scenario 4

 
Tetraploidy indicated the presence of 4 haploid sets of chromosomes, i.e. a total of 92 chromosomes. See Page 37.Incorrect. See Page 37.Your answer has been saved.
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5
Scenario 5

 
Tetrasomy indicates the presence of 4 copies of one chromosome. Tetrasomy is only compatible with survival in humans when it involves the sex chromosomes. Page 37.Incorrect. See Page 37.Your answer has been saved.
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