26 - 330 Class Notes DNA Packaging and Cell Division 2.5.12...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
330 Class Notes DNA Packaging and Cell Division 2.5.12 Slide 2: Binary Fission Each doubling is referred to as a generation. Exponential growth. Slide 3: Closer Look at the Bacterial Cell Cycle Mechanism in place to lay down septum and to separate the two replicated chromosomes of DNA. Spetums divide and split through a process called cytokinesis. Slide 4: Chromosome Dynamics Resolution of dimers. Multiple initiation sites can lead to multiple copies of genes… We want single copies. Condensation and Supercoiling. So it fits inside of the daughter cell. Slide 5: Chromosome Dimers can Form During DNA Repair If DNA is damaged through UV or something, then dimers occur. Homologous recombination is a way to fix some of these mistakes/ DNA damaged encountered. Schematic shows when there replication forks stall and undergo a homologous recombination event. Slide 6 A Closer Look at Homologous Recombination Requires that sequences be homologous to each other. There is a strand displacement event. One strand base pairs with second strand. Slide 7: Resolution of Dimers by XerCD Recombinase System This recombination will only occur at dif sites. There are dif sites located at terminus (ter). If chromosomes has two copies of dif site in DNA, then XerCD comes into play. Slide 8: Resolution of Plasmid Dimers by XerCD recombinase Two xer sites present because you have two copies of the plasmid. Called xer sites instead of ter in plasmids.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

26 - 330 Class Notes DNA Packaging and Cell Division 2.5.12...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online