MANIFEST DESTINY 1806 1855
PRESIDENT FRANKLIN PIERCES POLITICS AND ECONOMICS
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Detailed explanation-1: -Many people believe that American biologist James Watson and English physicist Francis Crick discovered DNA in the 1950s. In reality, this is not the case. Rather, DNA was first identified in the late 1860s by Swiss chemist Friedrich Miescher.
Detailed explanation-2: -Rosalind Franklin made a crucial contribution to the discovery of the double helix structure of DNA, but some would say she got a raw deal. Biographer Brenda Maddox called her the “Dark Lady of DNA, ” based on a once disparaging reference to Franklin by one of her coworkers.
Detailed explanation-3: -These four scientists-Crick, Franklin, Watson, and Wilkins-codiscovered the double-helix structure of DNA, which formed the basis for modern biotechnology.