Microbiology: Principles and Explorations
10th Edition
ISBN: 9781119390114
Author: Black
Publisher: WILEY
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Chapter 2, Problem 2.2SC
T–F: All of these bacteria on or in the human body have 100 times as many genes as the total number from human cells.
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a. You have a test tube containing 5 ml of a solution of bacteriophages, and you would like to estimate the number of bacteriophages in the tube. Assuming the tube actually contains a total of 15 billion bacteriophages, design a serial dilution experiment that would allow you to estimate this number. Ideally, the final plaque-containing plates you count should contain more than 10 and fewer than 1000 plaques.
Use the following information to answer the next
question.
Human genes were integrated into the chromosomes of
pig sperm using the procedure of sperm-mediated gene
transfer (SMGT). In the first successful SMGT procedure,
scientists used an enzyme to integrate three human
genes into the chromosomes of pig sperm.
Approximately 90% of the resulting pig embryos carried
all three human genes in very cell.
The presence of the human genes in every cell of a pig
embryo is evidence that the genes went through
Select one:
a. mRNA transcription
b. DNA replication
c. mRNA translation
d. DNA transcription
#10) Why are diseases of the blood simpler targets from treatment by gene therapy than are many other genetic diseases?
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Microbiology: Principles and Explorations
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