BIOLOGY
NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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E. Chargaff
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J. Watson and F. Crick
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H. Lacks
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R. Franklin
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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: -Watson and Crick showed that each strand of the DNA molecule was a template for the other. During cell division the two strands separate and on each strand a new “other half” is built, just like the one before.
Detailed explanation-3: -Figure 4: Oswald Avery’s work helped establish DNA as hereditary material. Data from Avery’s experiments.
Detailed explanation-4: -In 1962 Watson (b. 1928), Crick (1916–2004), and Wilkins (1916–2004) jointly received the Nobel Prize in Physiology or Medicine for their 1953 determination of the structure of deoxyribonucleic acid (DNA).