White blood cells seen engulfing large numbers of
bacterial cells are most likely
a. neutrophils.
b. macrophages.
c. mast cells.
d. eosinophils.
e. lymphocytes.
Answer: b
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Meiosis results in a reassortment of maternal chromosomes (inherited from the mother) and paternal chromosomes (inherited from the father). If n=4 for a given species, and ignoring the effects of crossing over, what is the probability that a gamete will receive only paternal chromosomes?
A. 1/2 B. 1/4 C. 1/8 D. 1/16 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 independent assortment? 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?
The problem of not being able to cultivate most microorganisms has led to the use of
A. FISH. B. microscopy with fluorescent dyes. C. 16s rRNA analysis. D. DGGE. E. All of these methods help identify microorganisms in the environment.
A couple conceives at the beginning of January. During which month will their child be undergoing organogenesis?
A. January B. February C. March D. April Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about organogenesis? What other information is related to the question? Choose Answer Given what you now know, what information 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?
Alpine pennycress plants remove zinc and
cadmium from the soil and store them away in their a. chloroplasts. b. amyloplasts. c. central vacuoles. d. Golgi bodies. e. vesicles.