Related Experiment Video
Updated: Aug 17, 2026

Chromosome Preparation From Cultured Cells
Published on: January 28, 2014
No evidence for constitutional chromosome instability in testicular cancer
Abstract:
Chromosome aberrations in 20 lymphocytes of 20 patients with testicular germ cell tumors (TGCT) treated with surgery alone were compared with those of 20 cells from 20 healthy controls using standard G-banding technique. No increase in structural aberrations was found in the cancer group. An unexpected finding was that of more cells with losses of chromosomes being present in the control group. These losses predominantly affected small chromosomes in the control group, whereas the pattern of chromosome loss was different in the cancer group. The literature claiming increased chromosome instability in TGCT patients is reviewed. Point estimates and 95% confidence intervals to exclude such a hypothesis based on our results were calculated.
Related Concept Videos
Nondisjunction
Inheritance of Chromatin Structures
The Y Chromosome Determines Maleness
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size. Today,...
Cancers Originate from Somatic Mutations in a Single Cell
Loss of Tumor Suppressor Gene Functions
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
Nondisjunction

