Chromosomal DNA The DNA of bacterial cells is found loose in the cytoplasm. It is called chromosomal DNA and is not contained within a nucleus. Plasmid DNA Bacteria also have small, closed-circles of ...

A newly identified virus–cell hybrid structure allows viruses to spread faster and more aggressively by hitching a ride on ...

In a recent study published in the journal Nature, a large team of researchers from the United States (U.S.) used single-cell ribonucleic acid (RNA) sequencing combined with high-resolution ...

The design of synthetic developmental programs for multicellular mammalian systems is a cornerstone of synthetic biology. The programs hinge on the construction of gene regulatory circuits that ...

If stretched out, human DNA would be about 2 meters long. For this long strand to fit inside the cell nucleus, which is about ...

A eukaryote is any cell or organism that possesses a clearly defined nucleus. Eukaryotic cells form the foundation of complex, multicellular life, including apple trees, mushrooms, fish and humans.

While prokaryotic cells do not have membrane-bound structures, they do have distinct cellular regions (Figure 1). In prokaryotic cells, DNA bundles together in a region called the nucleoid. Primitive ...

Nucleons, which include protons and neutrons, are the composite particles that make up atomic nuclei. While these particles have been widely studied in the past, their internal structure has not yet ...