BIO 121 Study Guide - Midterm Guide: Bacterial Outer Membrane, Crystal Violet, Absolute Time And Space
Document Summary
Dna ligase seals them together to form a continuous strand: dna polymerases add nucleotides only to the free 3" end of a growing strand, therefore a new. In preparation for cell division, dna is replicated and the chromosomes condense: each duplicated chromosome has two sister chromatics attached by the centromere. Mastering biology/chapters: kinetic energy: energy of motion, potential: energy at rest. The topoisomerase proteins surround the unzipping strands and relax the twisting that might damage the unwinding dna. The existing strand is a template for the new strandthe enzyme dna polymerase controls elongation, which can occur only in the leading direction. The lagging strand unwinds in small sections that dna polymerase replicates in the leading direction. During termination, the last primer sequence must be removed from the end of the lagging strand. This last portion of the lagging strand is the telomere section, containing a repeating non-coding sequence of bases.
