What is the correct order of events for sequencing DNA?
What will be an ideal response?
First, a DNA fragment of unknown sequence must be amplified and then mixed with primer and nucleotide bases. Four different chain-terminating chemical tags are added and heat is applied. Gel electrophoresis and computer analysis follow.
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When ____ is incorporated into DNA or RNA during synthesis, it will create a(n) ____
a. carbon; base analog b. oxygen; base analog c. 5-bromouracil; nucleotide substitution mutation d. 5-bromouracil; frameshift mutation e. oxygen; nucleotide substitution mutation
Which of the following statements comparing Enterobius vermicularis and Diphyllobothrium latum is incorrect?
A. Both helminths affect primarily children. B. D. latum has fish as an intermediate host, whereas E. vermicularis has no intermediate host. C. E. vermicularis is best treated with mebendazole, whereas D. latum is susceptible to praziquantel. D. Symptoms of both infections are mild.
Which of the following types of microbes is most likely to be found in the sediment of Lake Michigan?
A. Mesophiles; temperatures in the hypolimnion support growth in the 4-9°C range B. Anaerobes; oxygen is least abundant in the sediment layer C. Cyanobacteria; seasonal upwelling of nutrients can cause dramatic increases in their numbers D. Autotrophs; their carbon source is dissolved carbon dioxide
Compare and contrast the principal types of RNA in terms of their cellular roles, relative abundance, and variation in length
What will be an ideal response?