They then pull the two strands apart, allowing other enzymes to complete the replication. Without this first step, no DNA can be replicated. In this way, helicases are machines or, ...

The first step in DNA replication requires the assembly of a group of proteins called the Origin Recognition Complex (ORC). Researchers have determined how the ORC assembles during the cell ...

The rest must be produced by the fertilized egg in its first few steps of growth. Fruit flies make for stingy mothers, imparting only a portion of the genetic building blocks their offspring need ...

During DNA replication, the classic double helix can temporarily rearrange into an alternative structure known as a DNA three ...

DNA with three base pairs - A step towards expanding the genetic code Peer-Reviewed Publication. American Chemical Society. SAN DIEGO, March ... To improve replication, ...

Not all DNA looks like the familiar twisted ladder. Sometimes, parts of our genetic code fold into unusual shapes. One such structure, the G-quadruplex (G4), looks like a knot.

In a study reported in the journal Current Biology on March 14, the team tracked two groups of flies’ embryonic development: one with a normal supply of DNA building blocks, known as nucleotides, and ...