Insects:
A. have a respiratory system including
spiracles connecting to a trache
B. generally give birth to live young.
C. typically have a younger flying life stage
and an older aquatic life stage after
metamorphosis.
D. typically mate and produce young during
their larval stage.
A
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The term that best describes a symbiotic relationship in which two different microorganisms occupy the same ecologic niche but have absolutely no effect on each other is:
A) commensalism. B) mutualism. C) neutralism. D) parasitism.
Pneumocystis jiroveci infects only immunocompromised patients.
Answer the following statement(s) true (T) or false (F)
Using genetic engineering techniques, which of the following would you do to a protein that normally is constitutively secreted to make it accumulate in the ER?
A) fuse it to GFP B) add an amino acid that would get a mannose-6-phosphate group added to its carbohydrate C) add a KDEL sequence near its C-terminus D) mutate one of the asparagines that is normally glycosylated to an alanine, which is not glycosylated E) None of these would cause the protein to accumulate in the ER.
What is the basis of Mendel's laws?
A) the behavior of chromosomes during prophase I of meiosis only B) the behavior of chromosomes during mitotic anaphase C) the behavior of chromosomes during prophase I and prophase II of meiosis D) the behavior of chromosomes during metaphase I and anaphase I of meiosis