BIOL 190 Study Guide - Comprehensive Midterm Guide: Dna Replication, Okazaki Fragments, Hydrogen Bond
Document Summary
Crucial step in repairing for cell division! Ensures that daughter cells get a copy of each chromosome in the parent cell. Allows for the transmission of genetic information from generation to generation (hereditary function of dna) Hydrogen bonds between the parent strands break, and free. Nucleotides pair with the appropriate complementary nucleotides in each parents *in the nucleus* Half of the original parent molecule ends up in each daughter molecule. Each original strand is used as a template. The new daughter molecules are made up of one original (old/blue) strand and one new strand (gray) Eukaryotic dna is so long that replication begins in many places. We have linear dna, bacteria has circular dna. Where the two strands are opening up. Provides a 3" end, to which free nucleotides can be added. A place for new nucleotides to be added. Is synthesized continuously toward the fork (3" to 5") Is synthesized discontinuously, away from the fork.
