Replication in prokaryotes differs from replication in eukaryotes for which of the following reasons?
A) Prokaryotic chromosomes have histones, whereas eukaryotic chromosomes do not.
B) Prokaryotic chromosomes have a single origin of replication, whereas eukaryotic chromosomes have many.
C) The rate of elongation during DNA replication is slower in prokaryotes than in eukaryotes.
D) Prokaryotes produce Okazaki fragments during DNA replication, but eukaryotes do not.
B
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The polymerase chain reaction is used to duplicate small sections of
A. DNA. B. RNA. C. proteins. D. lipids.
Decomposers perform their recycling efforts
on organisms
a. at the end of a food chain. b. on the top of a pyramid. c. that are producers. d. that are consumers. e. that are all of these.
Arthropods with mandibles, gills, excretory glands, and statocysts are the:A
insects. B. spiders. C. scorpions. D. crustaceans. E. mites.
The bone marrow is where
A. antigen is filtered from the blood. B. antigen is filtered from tissue fluid. C. blood stem cells give rise to immature lymphocytes. D. immune responses to antigen occur. E. T-lymphocytes complete maturation.