Biology · Genetics
A cancer clinic is treating four unrelated patients suffering from chronic myelogenous leukemia. A researcher sequences the Philadelphia chromosome from the leukemic cells of these patients and makes the following statements: A. The DNA sequence was identical in the translocation breakage and rejoining (TBR) sections in all leukemic cells in all 4 patients. B. The DNA sequence was identical in all leukemic cells from patient 1, but every patient had a different TBR sequence. C. All patients have translocations between the long arms of chromosomes 9 and 22. D. All patients have translocations between the long arm of chromosome 9 and the short arm of chromosome 22. Which one of the following options represents the combination of all correct statements?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A and C
- 2B and D
- 3B and C✓
- 4A and D
Correct answer
B and C
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