Comparison of a single-stranded RNA and a double-stranded DNA with their corresponding nucleobases. (Image: Wikimedia Commons, CC SA 3.0) The most common type of base pairing is the Watson-Crick base ...

Erwin Chargaff's groundbreaking research, 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 ...

THE theory of genetic recombination by the formation of hybrid DNA 1 postulates that a recombinational ... (primary breaks), and rejoining by base pairing between homologous chains.

With the help of her photograph, James Watson and Francis Crick were able to piece together the first accurate model ... DNA ladder consists of two bases. In the DNA molecule, A always pairs ...

He even suggested DNA might actually be the gene ... He added that to the model, so that matching base pairs interlocked in the middle of the double helix to keep the distance between the chains ...

The central part of each nucleosome (core particle) is a cylindrical structure (5.7 nanometers in height and 11 in diameter) ...