BIO SCI 93 Lecture Notes - Lecture 13: Nucleic Acid Double Helix, Sulfur, S Phase

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 93
• Professor: Jorge Busciglio Kim Green Marcelo A Wood

Document Summary

**sulfur in proteins, phosphorus in dna** (dyed proteins/dna in bacteriophages; proves dna is the genetic material) In any organism the amount of t=a and c=g always!! Deduced width of helix and spacing of nucleotide bases. Semiconservative- daughter molecules have old strand and new strand. Each strand acts as a template for building a new strand. Happens during the s phase of the cell cycle; 12+ enzymes involved. Daughter molecules have old strand and new strand. Each strand is a mix of old and new dna.