Definition of evidence. 1a : an outward sign : indicationb : something that furnishes proof : testimony; specifically : something legally submitted to a tribunal to ascertain the truth of a matter.
Fifty years ago, James Watson and Francis Crick announced to patrons in a Cambridge pub that they had just discovered the secret of life. Their discovery was that the DNA double helix explained how cells divide and develop.ifty years ago, James Watson and Francis Crick announced to patrons in a Cambridge pub that they had just discovered the secret of life. Their discovery was that the DNA double helix explained how cells divide and develop.
The discovery of deoxyribonucleic acid, otherwise known as DNA, was made by Frederick Miescher, but the structure was discovered by James Watson and Francis Crick in 1953. Ro â¦ salind Franklin produced vital images of DNA through x-ray crystallography with which Watson and Crick were able to deduce the structure of DNA.