The absence of a band when the linker is present at about -25 indicates that
A. This region is critical for the in vitro transcription reaction
B. this region is not critical for the in vitro transcription reaction
C. it is not possible to determine if this region is critical for in vitro transcription
D. the linker interfered with transcription
Bloom's Level:
A
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In general, prokaryotic genome size is correlated to lifestyle. Which type of prokaryote typically has the smallest genome?
A) parasite B) endosymbiont C) autotroph D) free-living heterotroph
A fetus is
a. a newborn pig. b. a newborn human. c. an unborn mammal. d. all of the above.
Evidence shows that the earliest life may have existed how long ago?
a. 2 billion years ago b. 3.5 billion years ago c. 1.3 billion years ago d. 630 million years ago e. 250 million years ago
A researcher collects a soil sample and sequences the entire genomes of two prokaryotes found in the sample
In these genomes, she finds identical prophage DNA located in different areas of the two genomes. Based on the similarity of the sequences of the prophages and their placement in the prokaryotes' genome, what could she conclude concerning the relatedness of the two genomes? What will be an ideal response?