Which of the following acts to remove overtwisting and strain ahead of the replication fork during

DNA replication?



a. topoisomerase
b. primase
c. DNA polymerase
d. helicase
e. DNA ligase


A

Biology & Microbiology

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The process by which a fertilized egg becomes a distinct organism is called The process by which a fertilized egg becomes a distinct organism is called

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What effect does light have on retinal?

a. causes retinal to vibrate and warm up b. induces retinal to emit a high-energy photon c. transforms it from cis retinal to trans retinal d. decomposes retinal into rhodopsin and an opsin

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Which of the following examples is incorrectly paired?

a. schooling fish?aggregated distribution b. nesting seabirds?random dispersion c. grove of aspen?clumped dispersion d. flour beetle larvae?random dispersion e. adult sand pine?uniform dispersion

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Emil von Behring and Shibasaburo Kitasato demonstrated the body's defense mechanism against disease known as

A. Humoral immunity (antibody mediated) B. Cell-mediated immunity C. Both humoral immunity and cell-mediated immunity D. Neither humoral immunity nor cell-mediated immunity

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