Alfred Hershey and Martha Chase got lucky !

There are records of many scientists who got lucky during their experiments and got successful in them. Here is a similar story of two such scientists viz. Alfred Hershey and Martha Chase. They performed many experiments indicating DNA to be the genetic material in Bacterial virus T2 bacteriophage. They were lucky to have selected DNA [...]

Protein as genetic material ?

It was once thought that DNA was too simple to bear genetic Information. P.A. Levene elucidated the chemical composition of DNA in 1920s but he mistakenly believed that DNA is only 4 nucleotides long. Because of his influence partly, biologists believed that DNA is too simple to bear genetic information and it is encoded on [...]