BIOL 1113 Lecture Notes - Lecture 10: Hugo De Vries, Thomas Hunt Morgan, Walter Sutton
Document Summary
Nucleic acid structure and dna replication- chapter 10. Following mendel"s work, scientists determined that the genetic material must meet several criteria: information (must be able to store information, transmission (information must be transmitted from parent to offspring, replication (then transmitted, variation (of genetic information) Early 1900s: walter sutton, thomas hunt morgan, hugo de vries - the role of chromosomes in inheritance. Answer: repeat griffith"s experiment (i. e. , mix dead s and live r) Remove 99. 98% protein and rna from s cells, mix with r and mice still die. Summary: dna is the substance responsible for heredity. 1869 friedrich miescher names nuclein , a whitish material with acidic properties from nucleus. Levene components of nucleic acids: a five carbon sugar, a phosphate (po4) group, and a nitrogen containing base. 1945-50 erwin chargaff adenine = thymine and cytosine = guanine. 1950s rosalind franklin x-ray diffraction pattern. 1953 james watson and francis crick double helix model.
