Understanding the material basis of adaptive evolution has been a central goal in biology dating back to at least the time of ...

A new study from Weill Cornell Medicine provides insights into how cells maintain the tiny end caps of chromosomes as they ...

During interphase, the cell's DNA is not condensed and is loosely distributed. A stain for heterochromatin (which indicates the position of chromosomes) shows this broad distribution of chromatin ...

For this, the cell must duplicate its DNA—its genome—and segregate it equally into two new daughter cells. To prepare the 46 chromosomes of a human cell for transport to the daughter cells ...

A new study has shown how chromosomes change shape during cell division. Certain protein complexes help fold DNA into overlapping loops that repel each other, which then stack to create a rod-like ...

Transposons, or "jumping genes"—DNA segments that can ... in bacteria with linear chromosomes, and the researchers found that ...

The nucleus of each human body cell contains 46 chromosomes. Each chromosome contains about 1000 genes. There is enough DNA in all the cells in a human body to stretch to the sun and back again ...

So, it's very easy to see,” she said. To zoom in on changes in chromosome organization during meiosis, the researchers used nuclear membrane and DNA damage protein stains to track nuclear behavior.

The DNA is packed inside chromosomes. For example, chromosome no. 3 contains 6.5% of the total DNA in each cell. The chromosome 3 from the father contains DNA that is largely similar to that ...

Each human cell contains 23 pairs of chromosomes that carry DNA within their nucleus. The X and Y chromosomes, commonly referred to as the sex chromosomes, are one such pair. They determine the ...