What is one difference between DNA replication in bacteria versus eukaryotes?
A) Eukaryotic chromosomes are replicated bidirectionally, while bacterial chromosomes are replicated in one direction.
B) Eukaryotic chromosomes have many origins of replication and replicate bidirectionally, while bacteria have only one origin of replication and replicate unidirectionally.
C) Bacterial chromosomes are replicated bidirectionally, while eukaryotic chromosomes are replicated in one direction.
D) Eukaryotic chromosomes have many origins of replication, while bacteria have only one origin of replication.
E) The process is identical in bacterial and eukaryotic DNA replication.
D
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In general, the growth pattern of human population through history shows a/an _____ pattern.
A. logistic B. exponential C. logistic and exponential D. sigmoidal E. declining
Sporadic cancers ____
a. may develop when proto-oncogenes mutate to form tumor suppressor genes b. may develop when tumor suppressor genes are over-expressed c. are caused by benign tumors d. are cancers that are not inherited e. are less frequent than familial cancers
The overgrowth of algae due to water contamination from fertilizer runoff is termed what?
a. acidification b. alkalization c. subduction d. eutrophication
Since the hemolymph of crustaceans leaves the heart by arteries, why is it considered an open rather than a closed system?
a. The hemolymph lacks any respiratory pigments b. The hemolymph flows through the hemocoel and returns via venous sinuses rather than enclosed veins c. The heart does not pump hemolymph but it moves by ciliary action instead d. The arteries "dead end" and the hemolymph must backflow through the arteries e. The hemolymph lacks any respiratory function