Tag Archives: heterochromatin

DNA explosions in the evolution of Hawaiian flies: consequences and questions

The chromosome set of each species carries the organism’s DNA sequences or genome. Genomes of higher organisms contain the essential coding DNA, plus the typically more abundant noncoding DNA. This segment carries various repeated DNA sequences. The

Role of heterochromatin in establishing and changing cell fate

In development, a fertilized egg replicates many times, growing into an embryo and differentiating into many types of cells. In people, differentiation generates brain cells, muscle cells, and fat cells, among others. Each cell type has its