Eukaryotic organisms speed up the process of DNA replication by
A. producing several sliding clamp complexes which provide more binding sites for DNA pol III.
B. using multiple origins of replication on each chromosome.
C. using DNA gyrase to unravel the double helix rather than DNA helicase.
D. shortening the initiation phase.
Answer: B
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a. an ice age b. unknown reasons c. formation of Pangea d. human activity e. asteroid impact
Peatlands differ from other wetlands in that
A) the rate of organic production exceeds the rate of decomposition. B) there is no outflow of water, resulting in increasing salinities. C) they are seasonal, filling with water during the wet season and drying out during the dry season. D) they have a two-way flow of water due to tidal action.
Production of (acid/dextran/glycocalyces) allows Streptococcus mutans to colonize the mouth
What will be an ideal response?
Which of the following would not contribute to allopatric speciation ?
a. Geographic separation b. Gene Flow c. Genetic drift d. Different selection pressures e. Founder effect