Swirling inside every cell are millions of microscopic messages called messenger RNAs (mRNAs). The messages are the genetic ...

Scientists have finally captured footage of the microscopic machinery that allows our cells to copy DNA—a fundamental process ...

Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands. As the helicase moves along the DNA ...

Figure 1: Ribbon diagram representation of the structure of a, a member (Rep) of the Rep/PcrA family of helicases and b, a member (T7 gene 4 protein) of the hexameric helicase family. After having ...

This process of protein synthesis occurs in two stages ... This unwinding of the helix is caused by an enzyme (helicase enzyme). The enzyme RNA polymerase attaches to the DNA in a non-coding ...