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Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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In order to manufacture insulin for patients with diabetes, scientists create recombinant DNA by inserting a human insulin gene into bacterial DNA, and have the bacteria produce human insulin. Using knowledge about gene expression, what must the scientists do to the DNA sequence of the human insulin gene BEFORE inserting into the bacteria, in order to have them produce the same insulin sequence that humans would produce? Explain.
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- (a) Mutations have many different causes and effects. Outline how mutations can affect the gene pool of a population. (b) Draw a table that identifies THREI types of mutagens, describes how each mutagen causes mutation and describes the effects of each mutagen.arrow_forwardCancer-causing mutations in genes can have different effects on the protein products expressed. a) What type of mutation would be dominant in the development of cancer? Why? b) What type of mutation would be expressed as a recessive trait in the development of cancer? Why? c) Based upon your answers to parts (a) and (b), how would you treat these situations using a gene therapy approach?arrow_forwardHow does DNA encode the instructions to make us? Select all the true statements. Group of answer choices ( select all the true answers) a) DNA encodes the heritable instructions to make proteins b) DNA is directly translated into proteins c) DNA is first transcribed into mRNA, then the mRNA is translated into protein d) RNA is first transcribed into DNA, which is then translated into protein e) Each of our cells contains the same DNA, but different genes are transcribed and translated in different cell types.arrow_forward
- General transcription factors Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a a) act at every gene for a given RNA pol b b) act only at specific genes for under specific conditions c) must be very close to the promoter C d) none of the abovearrow_forwardGene expression can be disrupted by techniques such as homologous recombination and RNA interference. What is the functional difference between these two methods in terms of the ultimate effect on gene expression? Why might homologous recombination or an alternative genome-editing method (e.g., CRISPR/Cas9) be preferred over RNA interference?arrow_forwardYou wished to develop a genetically engineered E. Coli to produce a peptide hormone. You know the amino acid sequence of the peptide. Describe the sequence of steps you would use to obtain a culture expressing the gene as a peptide hormone.arrow_forward
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