The prokaryotes that cause tooth decay have a ________ relationship with humans
A) parasitic
B) predatory
C) mutualistic
D) competitive
Answer: A
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Which objective would be best to use a Southern blot rather than a Northern blot?
A) Determine if a gene is present in a genome. B) Discover gene function. C) Identify regulatory gene-protein interactions. D) Quantify expression profiles of a gene.
If you were observing a newly discovered animal and wanted to determine if it reproduces sexually or asexually, you could
A. perform genetic screening on the parents and offspring to see if the offspring are genetically identical to parents. B. examine males to see if sperm can be produced. C. try to observe mating behavior. D. look carefully for nests with eggs. E. None of the answer choices is correct.
Which mineral is essential to the production of thyroid hormone?
a. iron b. calcium c. sodium d. potassium e. iodine
Genetic regulation in bacteria can involve alterations in RNA secondary structure. What phenomenon occurs in the trp operon that involves such alterations?
A) transcription B) intron processing C) attenuation D) polyadenylation of the 3? end of the mRNAs E) capping