In 1953, Francis Crick and James Watson described the molecular shape of DNA as a "double helix ... In the nucleus, DNA forms a complex with proteins. This complex is called chromatin and ...

(Image: Wikimedia Commons, CC SA 3.0) 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 ...

Later it was found that the sugar in nucleic acid can be ribose or deoxyribose, giving two forms: RNA and DNA. In 1943 ... interlocked in the middle of the double helix to keep the distance ...

which is the phenomenon of fitting DNA into dense compact forms (Figure 7). During DNA packaging, long pieces of double-stranded DNA are tightly looped, coiled, and folded so that they fit easily ...

Chances are you've seen an illustration of DNA's double-helix structure and even ... cells are changing into different forms. If they didn't, all of the body's cells would be exactly like the ...

The backbone of the DNA double helix consists of alternating phosphate and deoxyribose sugar molecules. Interlinking bases hold the two sides together. As A is complementary to T and C is ...

In a study published in Nature, researchers report the successful in vitro reconstitution of meiotic DNA double-strand breaks (DSBs) formation. Meiosis, a specialized form of cell division in most ...