Which method is rapid and economical in terms of materials, but requires a certain degree of skill to master the technique.

A) Streak-plate method
B) Loop dilution (pour plate) method
C) Spread-plate method


A) Streak-plate method

Biology & Microbiology

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The enzyme _____ prevents chromosomes from shortening at the tips after each round of DNA replication

A. DNA polymerase. B. telomerase. C. topoisomerase II. D. DNA ligase. E. DNA replicase

Biology & Microbiology

Which of the following vessels offers more resistance to blood flow than the others?

a. arterioles b. venules c. arteries d. veins e. other capillaries

Biology & Microbiology

Of the 23 pairs of human chromosomes, 22 pairs are homologous and are found in both males and females. These are called ________.

A. recombinant chromosomes B. somatic chromosomes C. autosomes D. bivalents

Biology & Microbiology

Herbivores would usually be placed in which trophic level?

A) third B) either the third or fourth C) second D) fourth E) first

Biology & Microbiology