When a bacteriophage infects a bacterial cell, it injects ________ into the host cytoplasm.

A. RNA
B. DNA
C. lipids
D. carbohydrates
E. protein


Answer: B

Biology & Microbiology

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Which of the following processes does not involve bacteriophages?

A) lysogenic conversion B) lytic cycle C) transduction D) transformation

Biology & Microbiology

What is/are true of the polymerase chain reaction?

a. PCR allows for the mass production of a specific DNA sequence without cloning. b. PCR permits scientists to target a single copy of a single gene among millions of other sequences. c. PCR allows scientists to study DNA from samples of finite amounts, such as from fossils, or small tissue samples left at a crime scene. d. PCR cannot be used to clone DNA of unknown sequence e. all of these

Biology & Microbiology

Strains of Staphylococcus aureus that are resistant to ________ generally cannot be treated with antibiotic therapy.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

When blood glucose concentration is high, pancreatic beta cells secrete insulin, and consequently blood glucose

concentration is increased. Indicate whether the statement is true or false.

Biology & Microbiology