Matthew Meselson. Portrait of Matthew Stanley Meselson (born 1930),American molecular biologist. In 1957 Meselson and Franklin Stahl showed that when the double helix of deoxyribo- nucleic acid (DNA) duplicates during cell division,the two daughter cells each receive one old strand and one new strand. This 'semiconserv- ative' replication was proved using DNA which had been labelled with radioactive nitrogen. Meselson also studied viral infection with Brenner and Jacob,proving that when a virus invades its host,it uses ribonucleic acid (RNA) to instruct its host's ribosomes to begin making viral protein. Photograph taken in 1964 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 3376 px × 5363 px |
Model Release : | Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation. |
Property Release : | Non requis |
Restrictions : | - |