Revise the structure and replication of DNA for your Higher biology exam with Bitesize Scotland interactive practice quizzes covering feedback and common errors.

Overall structure. The prim-pol domain has a mixed α/β fold that does not resemble any known DNA polymerase structure, thus defining a new DNA polymerase family ().The most prominent features of ...

DNA recombination is a universal biological event responsible both for the generation of genetic diversity and for the maintenance of genome integrity. A four-way DNA junction, also termed ...

Scientists have a new theory about the structure of DNA. Two strands of alternating sugar (deoxyribose) and phosphate groups make up the DNA double helix, and the strands were thought to be linked by ...

The structure of DNA made visible Date: August 31, 2015 Source: ResearchSEA Summary: From 1952, DNA was sequenced, modified and extensively studied, but no technique was able to produce clear ...

Major Advance Made On DNA Structure Date: May 4, 2005 Source: Oregon State University Summary: Oregon State University researchers have made significant new advances in determining the structure ...

Base Pairing: The two strands of DNA are held together by hydrogen bonds between the nitrogenous bases. Adenine (A) always pairs with thymine (T), and guanine (G) always pairs with cytosine (C). This ...

Taken in 1952, this image is the first X-ray picture of DNA, which led to the discovery of its molecular structure by Watson and Crick.Created by Rosalind Franklin using a technique called X-ray ...

The double helix, though, is not the only form in which DNA exists. For the first time ever, scientists have identified the existence of a new DNA structure that looks more like a twisted, four ...

Biology textbooks may be due for a rewrite. For the first time, scientists have detected a DNA structure inside living human cells that looks more like a four-stranded knot than the elegant double ...