Which kind of sterilization procedure takes advantage of the size of microorganisms?

A. Open flame
B. Filtration
C. Use of chemicals
D. Autoclaving


Answer: B

Biology & Microbiology

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In gel electrophoresis, DNA fragments move at different rates because they have different

A) electrical charge densities. B) sizes. C) base sequences. D) amino acid compositions. E) overall electrical charges.

Biology & Microbiology

Which of the following statements about exergonic

reactions is false? a. They release energy. b. Glucose metabolism is an example. c. Their products have more energy than the reactants. d. Some energy is converted to less biologically useful forms. e. Bonds are broken.

Biology & Microbiology

Which one of the following enzymes catalyzes the attachment of nucleotides to a growing complementary strand?

A) restriction enzyme B) DNA polymerase C) plasmid D) DNA ligases E) transgenic

Biology & Microbiology

A cell that contains a large number of ribosomes would produce a large number of ________ molecules

Fill in the blank(s) with correct word

Biology & Microbiology