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.
James Watson, Frances Crick and Rosalind Franklin played a significant role. Franklin used x-ray diffraction on DNA to find out more about its structure. Watson and Crick used Franklin's data, and other info, to build a model of the structure of DNA.NA (Deoxyribonucleic Acid) is the 'instruction manual' of how to build life. DNA defines everything, from microbes to plants to humans. DNA is what determines your appearence, such as facial features, hair colour and height.