The debacle of the Darwin-Wedgwood family

Much is known about Charles Darwin (1809-1882) and his fascinating studies, such as the Origin of the Species (1859) or The Descent of Man, and Selection in Relation to Sex (1871). But, what could you tell me about his family? Did you know that he had ten children? And did you know that he was married with his first cousin? Come with us to discover more about this prodigious man and the old and ugly habit of inbreeding.

Charles Darwin and Emma Wedgwood

The Nucleobases Etymology

Albrecht Kossel (left) and a thymus histological section (right)

Adenine, thymine, cytosine and guanine are nucleobases used in forming nucleotides of the nucleic acids. The purine nucleobases (A and G) bind to the pirimidinic ones (C and T) via hidrogen bonds in the DNA. 

Albrecht Kossel (1953-1927), was a German biochemist who isolated and described the nucleobases and named them with the names we currently use.