A study was completed comparing growth of two cell lines. These cell lines were identical except that one of them contained a loss of function mutation in the enzyme telomerase. Over many divisions, the mutant cell line's growth slowed and eventually ceased completely (resulting in earlier cell senescence). Explain this result in terms of the specific structural features of eukaryotic chromosomes that we discussed in Chapter 6. (4 pts) Continuing with the same example of the two cell lines in Question 8, describe an experiment to examine global gene expression changes between these cell types (normal and telomerase-deficient). Include a description of how the technique works and what results might be expected from it. (5 pts)
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The main structural feature of eukaryotic chromosomes that is relevant to this question is the presence of telomeres at the ends of the chromosomes. Telomeres are repetitive DNA sequences that protect the ends of chromosomes from degradation and fusion with other Show moreā¦
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