Archaea wrap their DNA (yellow) around proteins called histones (blue), shown above in a 3-D representation. The wrapped structure bears an uncanny resemblance to the eukaryotic nucleosome ...

Prokaryotes, which include bacteria and single-celled microorganisms called Archaea, usually pass their chromosomal DNA on to their offspring asexually. In other words, a bacterial cell reproduces ...

Scientists identified two key distinctions related to the DNA replication system and the membrane. The replication system of archaea is largely unrelated to that of bacteria, but it is homologous ...

For the study, the diversity of bacteria and archaea of each individual sample was determined using DNA sequences, and the diversity found in all samples from a particular biome used to determine ...

DNA topoisomerases are a class of enzymes that ... Until recently Topo VI was thought to occur only in archaea, a domain of ...

as well as in a few bacteria and archaea species, the new study establishes divergent transcription—the reading of genes in both directions—as a widespread feature conserved across all three domains ...

In prokaryotes, DNA is bundled together in the nucleoid region ... Prokaryotes can be split into two domains, bacteria and archaea, and are unicellular organisms that lack membrane-bound structures.

These enzymes recognize characteristic DNA sequences and cut them. Bacteria and Archaea can also use these enzymes to locate foreign DNA and render it harmless. Scientists used the restriction enzymes ...