Podcast
Questions and Answers
Who first identified DNA as an acidic substance and what did he name it?
Who first identified DNA as an acidic substance and what did he name it?
Friedrich Meischer identified DNA as an acidic substance and named it 'Nuclein'.
What is the chemical difference between RNA and DNA?
What is the chemical difference between RNA and DNA?
RNA has an additional -OH group at the 2'-position in the ribose and contains uracil instead of thymine.
Who proposed the Double Helix model for the structure of DNA and what was the basis of their proposition?
Who proposed the Double Helix model for the structure of DNA and what was the basis of their proposition?
James Watson and Francis Crick proposed the Double Helix model based on the X-ray diffraction data produced by Maurice Wilkins and Rosalind Franklin, as well as the observation of base pairing by Erwin Chargaff.