Multiple choice

A man with a tumor carrying a translocation of chromosomes 9 and 22, is suffering from which of the following?

  1. Retinoblastoma

  2. Li–Fraumeni syndrome

  3. Soft tissue sarcoma

  4. Chronic myelogenous leukemia

  5. Hereditary nonpolyposis colon cancer

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Chronic myelogenous leukemia is an uncommon type of cancer of the blood cells. The t(9;22) describes the Philadelphia chromosome, in which the bcr gene on chromosome 22 is juxtaposed to abl on chromosome 9.