Which of the following does NOT belong with the others?

A. replication fork
B. single-stranded binding proteins
C. DNA ligase
D. topoisomerase
E. helicase


C. DNA ligase

Biology & Microbiology

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What will be an ideal response?

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Soluble antigens are detected in what type of test?

A. Cross-reactions B. Agglutination C. Precipitation D. Specificity E. Sensitivity

Biology & Microbiology

________ are strains that are unable to grow on a minimal medium that supports growth of the wild type strain, but are able to grow on the minimal medium if one or more nutritional supplements are added.

A. Auxotrophs B. Prototrophs C. Minitrophs D. Autotrophs

Biology & Microbiology

What would happen if the plasma membrane were composed solely of phospholipids and no proteins?

A) Immune reactions would not be affected. B) The movement of molecules across the membrane would not be affected. C) All movement of molecules across the membrane would cease. D) Simple diffusion and osmosis would continue to occur. E) Only water would be able to pass through the membrane.

Biology & Microbiology