produces short sequences of RNA, which allows polymerase to synthesize a new strand of DNA.
A. DNA primase
B. DNA helicase
C. DNA polymerase
D. DNA topoisomerase
E. DNA ligase
A. DNA primase
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Like DNA microarrays, Northern blots analyze the levels of mRNA. However, Northern blots are almost always prepared with a probe tagged with one label, whereas DNA microarrays almost always use two groups of probes, each one tagged with a different fluore
scent label. What is the advantage of using two labels for the microarray probes? The two labels _____. A) increase the sensitivity of the microarray B) allow the analysis of the expression of more genes C) allow simultaneous assay of levels of DNA and RNA D) allow comparison of gene expression between two samples
Most golden algae are ____
a. unicellular and autotrophic b. unicellular and heterotrophic c. colonial and autotrophic d. colonial and heterotrophic e. multicellular and heterotrophic
This disease most commonly occurs because
an enzyme that crosslinks fibrin strands into a stable mesh is defective. This disease is
a. sickle-cell anemia. b. hemophilia. c. atherosclerosis. d. hypertension. e. emphysema
Bergey's Manual of Systematic Bacteriology contains
A) classification schemes for prokaryotes. B) treatments for bacterial diseases. C) recipes for bacterial growth media. D) genetic sequences of prokaryotes. E) rules for naming new bacterial species.