*Unit 6 Part 1: DNA History Flashcards
DNA & Protein Synthesis
What did Oswald Avery discover? In what year?
He discovered DNA is the carrier of genes, not proteins in 1944.
What did Hershey and Chase do? What year?
They confirmed DNA as hereditary material in 1952.
What did Chargaff discover? In what year?
He discovered the amount of A always equals the amount of T nucleotides and the amount of C always equals the amount of G. 1950.
Who discovered DNA is the carrier of genes, not proteins in 1944?
Osward Avery
Who confirmed DNA as hereditary material in 1952?
Hershey & Chase
Who discovered the amount of A always equals the amount of T nucleotides and the amount of C always equals the amount of G?
Chargaff
Who took x-ray crystallography photos of DNA? In what year?
Rosalind Franklin in 1952
Who was Rosalind Franklin?
~Very skilled at x-ray crystallography
~Not taken seriously because she was a women
~ Her Famous Photo 51 of DNA was given to Watson without her permission
~Died in 1958 at the age of 37 from ovarian cancer
~Died likely due to working with x-rays
~Was not mentioned when Watson and Crick won the Nobel Peace Prize in 1962
What is the most well known thing Rosalind Franklin produced from her work with x-rays
Photo 51 of DNA
Who built models using Chargaff’s and Franklin’s data in 1953?
Watson and Crick
Who were Watson and Crick?
~Built models using Chargaff’s amd Franklin’s Data
~ Proposed double-helix model with base pairing between 2 DNA strands
~Won the Nobel Peace Prize in 1962
~THEY WERE THIEVES
What happened in 1953?
Watson and Crick:
~Built models using Chargaff’s amd Franklin’s Data
~ Proposed double-helix model with base pairing between 2 DNA strands
