Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Explain how eukaryotic DNA is able to organized and be able to compact iself.
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- Suppose a researcher conducts matings between three Hfr bacterial strains and an F strain. The table shows the order in which genes are incorporated for each strain. Determine the gene order of the chromosome by placing each gene on the outside of the circular chromosome map. Identify the origin of replication for each Hfr strain on the inside of the map to indicate polarity of the origin. Hfr strain Order of gene transfer 1 negyp hjfld gendl Answer Bank 4.arrow_forwardDNA polymerase occasionally incorporates the wrong nucleotide during DNA replication. If left unrepaired, the base-pair mismatch that results will lead to mutation in the next replication. As part of a template strand, the incorporated wrong base will direct the incorporation of a base complementary to itself, so the bases on both strands of the DNA at that position will now be different from what they were before the mismatch event. The MER-minus strain of yeast does not have a functional mismatch excision repair system, but it has normal base excision repair and nucleotide excision repair systems. Which of the following statements is correct about differences in the mutation spectrum between MER-minus and wildtype yeast? More than one answer is correct. Options: More point mutations will arise in MER-minus yeast. Fewer point mutations will arise in MER-minus yeast as compared with wildtype. Of the total point mutations that…arrow_forwardAside from the bacterial chromosomewhere may DNA be found in a prokaryotic cell? what ways is genetic material transferred from one bacterial cell to another?arrow_forward
- In eukaryotes, why is less DNA transcribed the more it is compactedarrow_forwardDescribe the basic structure and organization of eukaryotic genetic material.arrow_forwardDifferentiate the activity of an RNA-dependent RNA polymerase when functioning as a replicase and when functioning as a transcriptasearrow_forward
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