A reverse transcribing DNA virus that wants to replicate its genome must first convert the dsDNA to ________ before using that to create copies of the dsDNA genome.
A. double strand DNA
B. single strand RNA
C. single strand DNA
D. double strand RNA
Answer: B
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Which of the following is NOT a characteristic of a type II restriction endonuclease?
A) cleavage product can be either blunt or sticky ended but is always the same for an individual enzyme B) recognizes a specific palindromic site for cleavage C) recognition site length varies among enzymes but is always the same for an individual enzyme D) unable to cleave methylated DNA
You are given a new animal species to study. You note that it possesses segmentation. Knowing only that it is segmented, which of these are segmented? Check all that apply.
_____ Cnidaria. _____ Arthropoda. _____ Chordata. _____ Annelida. _____ Platyhelminthes.
The biochemical oxygen demand (BOD) test is primarily a measure of carbon demand and should not include nitrogen oxidation demand.
Answer the following statement true (T) or false (F)
Anthrax is not routinely diagnosed in the U.S. because
A. infection is generally only seen in late-stage AIDS patients. B. infections are usually asymptomatic. C. it is a rare infection. D. health care workers haven't been trained to detect it.