Which of the following bind the constant region of IgE?
A. eosinophils
B. mast cells
C. monocytes
D. both mast cells and monocytes
E. both eosinophils and mast cells
Answer: E
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If a germ-line cell from an owl contains 8 picograms of DNA during G1 of interphase, how many picograms of DNA would be present in each cell during prophase I of meiosis? (Enter the number only, not the units.)
What will be an ideal response? Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about meiosis? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process ·Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following is a greenhouse gas?
A. water vapor B. molecular oxygen C. molecular nitrogen D. argon E. carbon monoxide
The step of DNA replication in which the proteins connect the correct sequence of nucleotides into a continuous new strand is called
A) initiation. B) elongation. C) termination. D) translation. E) translocation.
Which of the following illustrates altruism?
A) Parent birds spend much of their time and energy feeding their young. B) A mother bird pretends to be wounded to distract a predator away from her young. C) Males sing to attract females as mating partners. D) Birds of a different species care for a cuckoo egg. E) Parent birds clean out their nests.