BIOL 2344 Chapter Notes - Chapter 20: Site-Specific Recombination, Holliday Junction, Dna Mismatch Repair
Document Summary
Dna strands become resolved into two separate chromosomes; (2) in microscopy, minimum distance between two objects that enables them to be seen as separate from each other. Various proteins are necessary to facilitate homologous recombination. Gene conversion may result from dna mismatch repair or dna gap repair. Antibody diversity is also generated by imprecise end joining and somatic hypermutation: somatic hypermutation ~ high rate of mutation that occurs within genes that encode antibodies. 20. 3 transposition: transposable elements (tes) ~ small segment of dna that can be inserted in multiple locations within chromosomal dna. Mcclintock found that chromosomes of corn plants contain loci that can move: mutable site ~ site in which chromosome that tends to break at fairly high rate due to presence of transposable element. Each type of transposable element has a characteristic pattern of dna sequences: direct repeats (drs) ~ short dna sequences that flank transposable elements in which.
