BIO 111 TAMU Fletcher Exam 3 Questions And Answers 100% Solved | Graded A+

BIO 111 TAMU Fletcher Exam 3 Questions And Answers 100% Solved | Graded A+ Friedrich Miescher - discovered DNA in 1869 But did not know (Isolated phosphate) rich acidic compounds Frederick Griffith - Discovered transformation during an experiment that involved injecting mice with smooth S cells, rough R cells, heat-killed S cells, and heat-killed S cells with living R cells. Avery, MacLeod, McCarty - Identified the heritable substance as DNA Used test tubes- vitro Hershey and Chase - performed experiments showing that DNA is the genetic material of a phage known as T2 chargaff - A=T and C=G Wilkins and Franklin - used X-ray diffraction to determine that the shape of DNA was a helix Waston and Crick - Developed the current model for the DNA double helix; determine the structure of DNA DNA structure - polymer of nucleotides, Nitrogenous base, Sugar, Phosphate group Nitrogenous bases in DNA - adenine=2, guanine=3, cytosine=3, thymine=2 purine - Adenine and Guanine (2 rings) Pyrimidine - cytosine and thymine (single ring)