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14 Jun 2019

Determine and describe one concept that connects two different topics ( ex. DNA repair/ cancer) we have done in semester.

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Nelly Stracke
Nelly StrackeLv2
15 Jun 2019

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Related questions

please copy and paste the following link ( https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3426293/ ) then:

describe your understanding of the following topics (since most of the wrok is being done on human microbiomes, you can focus on humans but if you find references on other animals please discuss them):

- what is meant by a microbiome;

- how a microbiome affects good health;

- how a microbiome can harm health;

- the link between the human microbiome and mental health;

- what are “probiotics”, do they actually work?

- how do microbiomes repair or how have we learned to assist in their repair?

89) During fasting, glucose is synthesized from gluconeogenesis.Where is glucose used?

During fasting glucose is directed to the brain.

..

90) Why does DNA polymerase need a RNA primer for replication ofchromosomes?

DNA polymerase cannot start synthesis, only extends on anexisting polynucleotide. RNA polymerase can synthesize without anexisting primer.

..

91) During replication of chromosomes, synthesis of one strandis continuously extending. Another strand extend discontinuously.Why?

..

92) Histone proteins are core of nucleosomes. DNA wraps aroundthem. Both DNA and histones are involved in regulation of geneexpression. Transcription factors and enhancers are other elementsof regulation. What would be like if a gene has a promoter but doesnot have tissue specific regulatory protein binding sites?

..

93) Some of cancer causing genes are involved in DNA repair suchBRCA1 and BRCA2. Why do defects in DNA repair increase chance ofgetting cancer?

7a. There are several challenges to DNA replication that Eukaryotes face that Eubacteria do not. Please list at least 4 and explain for each one how the cell solves this problem.

b. Compare and contrast the different mechanisms of DNA repair we discussed in class.

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