An immunoassay was developed to rapidly diagnose patients infected with an emerging virus. However, the researchers discovered that some individuals were producing false negatives when tested, despite being infected with the virus. What might explain this?
A. Changes in the antibody produced by the virus
B. Rapid evolution of the viral antigen
C. Changes in the length of the viral DNA
D. Number of genome copies carried in each virion
Answer: B
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Damage to the ground meristem of a plant would result in
A. the inability to move water but not sugar through the plant. B. decreased sugar production. C. an increase of gas exchange at the surface of the leaf. D. dehydration of the plant. E. inability to move sugar but not water through the plant. 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 already know about the function of ground meristem in plants? 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?
What are the three types of muscle? How do they differ?
What will be an ideal response?
Which event occurs during the luteal phase of the menstrual cycle?
a. The corpus luteum forms. b. A zona pellucida forms around the oocyte. c. An oocyte completes meiosis I. d. Estrogen levels increase. e. Testosterone levels increase.
The process in which yeast reproduce by forming a daughter cell that is genetically identical but initially smaller in size is called
A.) Conjugation B.) Fission C.) Meiosis D.) Budding