Name one benefit and one challenge to using genetic methods to identify microbes
What will be an ideal response?
Genetic methods are good at identifying microbes because they can be quick. However, they rely on the use of previously designed probes, which means that you already have to have an idea about what you are looking for. A negative result only tells you, you don't have that kind of microbe, it doesn't tell you which kind you do have or even if you have anything at all.
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The phase of the cell cycle associated with the replication of DNA is
A) anaphase. B) interphase. C) metaphase. D) prophase. E) telophase
Which cells are alive at maturity?
a. sieve elements b. vessel members c. tracheids d. vessel members and tracheids e. sieve elements and vessel members
Which of the following occurs during the embryonic stage of development?
A. Heartbeat can be heard. B. Testes descend into the scrotum. C. Chorion appears. D. Nose, eyes, and ears become noticeable. E. Fingernails appear.
Cells of the pancreas will incorporate radioactively labeled amino acids into proteins. This "tagging" of newly synthesized proteins enables a researcher to track their location. In this case, we are tracking an enzyme secreted by pancreatic cells. What is its most likely pathway?
a) ER -> lysosomes -> vesicles that fuse with plasma membrane b) Golgi -> ER -> lysosomes c) ER -> Golgi -> vesicles that fuse with plasma membrane d) ER -> Golgi -> nucleus e) nucleus -> ER -> Golgi