BIOL 1000 Chapter Notes - Chapter 16: X-Ray Crystallography, Complementary Dna, Thymine
Document Summary
Identification of molecules of inheritance loomed as a major challenge to biologists in the early 20th century. In dna phosphate units join one sugar to the other sugar. Dna coming from the sugars and how they are attached. *carbons 3 and 5 are what are attached to the phosphates. Picture a ladder, hydrogen bonds are middle parts, sugars outer: a pairs with t and c pairs with g as you already know. Dna is replicated by adding in a new series of dna where new nitrogenous bases are added to get the code from the dna. Initially in the bubble there is a small amount of new dna, and as time passes the bubble grows larger and more new dna is forming by copying the parent strand. Primase starts a complimentary rna chain from a single rna nucleotide, adding rna nucleotides one at a time.