We've now zoomed in enough to see portions of the DNA strand. The DNA is wrapped around histones -- protein structures that are sometimes depicted as discs. Histones carry a slight positive charge ...

Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, as the parent cell. To accomplish this, each strand of existing DNA acts as a ...

DNA strand. Isolated on white background ... High resolution JPEG and Transparent PNG included in file. drawing of genes stock illustrations ...

An insertion mutation occurs when an extra nucleotide is added to the DNA strand during replication. This can happen when the replicating strand "slips," or wrinkles, which allows the extra ...

DNA polymerase enzymes use the existing DNA strand as a template and add the complementary nucleotides, including thymine, to the growing new strand. Mutations involving thymine can occur during DNA ...

In the world of nanotechnology, the development of dynamic systems that respond to molecular signals is becoming increasingly ...

RNA polymerase moves along the DNA strand. Free RNA nucleotides form hydrogen bonds with the exposed DNA strand nucleotides by complementary base pairing to form a strand of mRNA: Note - RNA ...

Researchers show how DNA origami and fluorescent probes can be used to release molecular cargo in a targeted manner.

The DNA repair and replication pathways converge on a common final step in which the continuity of the repaired DNA strand is restored by DNA ligase, an enzyme that converts nicks into phosphodiester ...

They form when stretches of cytosine letters on the same DNA strand pair with each other, creating a four-stranded, twisted structure protruding from the double helix. The researchers found that i ...

mitochondria have their own DNA, a small circular strand with about three dozen genes. Mitochondrial DNA is a remnant from the organelle's forebears: ancient bacteria that settled inside our ...

LMU chemists present two studies that open up new possibilities for biotechnological applications.