Researchers often want to isolate a certain type of RNA. For some RNA species, this can be accomplished via affinity chromatography, using beads coated with chains of poly-deoxythymidine (poly-dT). The desired RNA will stick to the beads while unwanted RNAs will flow through the column. The retained RNA can then be eluted. What RNA species can be purified using this method?
A. bacterial mRNA
B. eukaryotic mRNA
C. eukaryotic rRNA
D. bacterial rRNA
Ans: B. eukaryotic mRNA
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Which one of the following methods of antimicrobial susceptibility testing is the most popular method in the United States? (Note: information about susceptibility testing can be found on the CD-ROM that accompanies this book.)
A) agar dilution method B) disk-diffusion method C) macro broth dilution method D) micro broth dilution method
What is one result of the bottleneck effect?
a. balanced alleles b. heterozygosity c. decreased genetic diversity d. disruptive selection e. random mating
A species that consumes only animal tissue is called a(n) ________
Fill in the blank(s) with correct word
Problems with Set-Point Theories of Hunger and Eating
What will be an ideal response?