This base-to-base bonding is not random; rather, each A in one strand always pairs with ... ladder-like structure described above, another key characteristic of double-stranded DNA is its unique ...

The most common type of base pairing is the Watson-Crick base pair, named after James Watson and Francis Crick, who first proposed the double helix structure of DNA. In this type of pairing, adenine ...

Credit: Kateryna Kon/Science Photo Library/ What is DNA, and how does it work? You don't need a degree in ...

Laying the Groundwork: Levene Investigates the Structure of DNA Meanwhile ... the complementary bases now fit together perfectly (i.e., A with T and C with G), with each pair held together ...

which showed that DNA base pairs had a complementary relationship, laid the foundation for James Watson's and Francis Crick's DNA model. When word spread that Watson and Crick had solved the structure ...

Crick had just learned of Chargaff's findings about base pairs in the summer ... This way DNA can reproduce itself without changing its structure -- except for occasional errors, or mutations.

The dark bands indicate areas where the structure of the chromosome ... Each rung of the DNA ladder consists of two bases. In the DNA molecule, A always pairs up with T, and C always pairs up ...

The original model of DNA structure created by Crick and Watson ... The two threads are held together by bonds between base pairs. There are four types of base - adenine, thymine, cytosine and ...

In the double helix structure of DNA, thymine forms a base pair with adenine through two hydrogen bonds. This specific pairing is known as complementary base pairing and is essential for the stability ...

and G—have found that DNA polymerase is more accommodating to unusual base pair conformations than previously thought, in new research published this week (June 3) in Nature Chemical Biology. While ...