The process that occurs when a phage transfers a piece of DNA from one bacterium to another is called:

a) conjugation
b) transduction
c) transformation
d) restriction


Answer: b) transduction

Biology & Microbiology

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What is the difference between hypothesis testing and discovery-based research?

A. Hypothesis can be validated or invalidated while discovery-based research relies more on collection and analysis of data without a hypothesis B. Discovery-based science can be validated or invalidated while hypothesis based research relies more on collection and analysis of data C. There is only one type of experimental approach, both terms describe the same approach. D. Hypothesis-based research results in believable science while discovery-based research results in unreliable conclusions.

Biology & Microbiology

Each steroid hormone can bind to its own steroid hormone response unit (SHRU) but not to the SHRU

associated with other steroid hormones.

Indicate whether the statement is true or false.

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Spiders and scorpions belong to the phylum containing the

A. annelids. B. cnidarians. C. arthropods. D. echinderms. E. mollusks.

Biology & Microbiology

Intercalated discs

A) are characteristic of smooth muscle cells. B) contain gap junctions that allow the signal to spread quickly through cardiac muscle cells. C) support fast-twitch fibers of skeletal muscle. D) stimulate pacemaker cells in cardiac muscle. E) stimulate the contraction of skeletal muscle.

Biology & Microbiology