Biology 311C Lecture 27 - October 28, 2011 Biology 311C...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
October 28, 2011 Biology 311C Lecture 27 Hershey and Chase were able to distinguish bacteriophage DNA from protein by using 35C which in protein, but not DNA. The composition of DNA is us varies between species. Regardless, there was a relationship. Percentages of the nitrogenous base pairs were always equal. Chargaff’s date on base composition of DNA includes cells of individuals in a given species contained the same proportions of DNA bases. Watson and Crick took all of Rosaline Frank’s preexisting data and built a model. They found out that the backbone of DNA is sugar-phosphate. They also figured out that within each whole turn, there are 10 base pairs. It measured 3.4 nm and figured out the antiparallel structure.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/21/2012 for the course BIO 311 C taught by Professor Mcclelland during the Fall '09 term at University of Texas at Austin.

Ask a homework question - tutors are online