Restriction enzymes
a. produce staggered cuts in DNA that are often
useful in splicing genes.
b. are very specific in their action.
c. are natural defense mechanisms in bacteria that
destroy foreign DNA introduced by viruses.
d. are used along with ligases and plasmids to
produce DNA libraries.
e. are all of these.
Answer: e
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When we first see chiasmata under a microscope, we know that _____
A) asexual reproduction has occurred B) meiosis II has occurred C) anaphase II has occurred D) prophase I is occurring E) separation of homologs has occurred
A tRNA that has an amino acid attached is called _____
A. an rRNA B. a degenerate tRNA C. a coding tRNA D. a charged tRNA E. None of the answers are correct
Which statement concerning pathogen-associated molecular patterns (PAMPS) is FALSE?
a. They are features of pathogens recognized by cells of animals. b. They trigger activation of phagocytes. c. They react with specific receptors on host cells. d. They are found on all microbes except viruses. e. The peptidoglycan of gram-positive bacteria is an example.
The ________ is responsible for converting information from the short-term to the long-term memory
Fill in the blank(s) with correct word