The structure of DNA was proposed by_________?
Correct answer: D. Watson and Crick
- A. Louis Pasture
- B. William Harvey
- C. Charles Darwin
- D. Watson and Crick
Explanation
Watson and Crick proposed the double-helical model of DNA in 1953, using evidence including Chargaff's rules and X-ray diffraction data from Rosalind Franklin and Maurice Wilkins. Students may choose Darwin because he is famous for a major biological theory, but Darwin did not determine DNA structure.
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About Structure of DNA
DNA structure includes nucleotides made of deoxyribose, phosphate and nitrogenous bases, arranged in two antiparallel polynucleotide strands. Questions cover the double helix, phosphodiester and hydrogen bonds, complementary base pairing between adenine and thymine and between guanine and cytosine, and the significance of major and minor grooves.
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More Structure of DNA questions
Wilkins X-ray diffraction showed the diameter of the DNA helix as ________?
Genes are made up of ________ ?
The term 'gene' refers to __________?
A genome is___________?
Each turn of DNA contain ____________ nitrogenous base pairs?
Purines and pyrimidines are in equal ration in DNA. It was indicated by_______________?