Answered: How does KU proteins promote DNA repair…

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How does KU proteins promote DNA repair during mitosis? Explain.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter10: Cell Reproduction

Section: Chapter Questions

Problem 45CTQ: Describe how the duplicated bacterial chromosomes are distributed into new daughter cells without...

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Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.

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How does KU proteins promote DNA repair during mitosis? Explain.

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Describe chromatin when CpG islands are unmethylated?
Describe how the duplicated bacterial chromosomes are distributed into new daughter cells without the direction of the mitotic spindle.
The interphase is the part of the eukaryotic cell cycle that is most transcriptionally active. Gene regulation during this phase involves changes in the chromatin. a) What is chromatin? b) How can the chromatin structure change?
Describe chromatin when the CpG islands are methylated?
How can the chromatin structure change?
When chromatin is treated with non-specific nucleases, what is the length of the resulting pieces of DNA
List in each blank the description of events associated with each stage of mitosis in addition to the preparatory stage Interphase. Some events and structures occur only in plant cells and some in animal cells. Mark these events in the list with an asterisk.
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Consider how histone proteins bind to DNA and then explain whya high salt concentration can remove histones from DNA (asshown in 10.18b).
The term heterochromatin refers to heavily condensed regions of chromosomes that are largely devoid of genes. Since few genes exist there, these regions almost never decondense for transcription. At what point during the cell cycle would expect to observe decondensation of heterochromatic regions? Why?
Address the general properties of the chromatin within the following types of DNA: DNA undergoing active transcription DNA within a mitotic chromosome DNA immediately after passage of the replication fork centromeric DNA