You are a doctor examining a patient who had a bad fall. You conduct the patellar reflex test by tapping on his right patellar tendon. The patient's leg does not move in response to your tap. What can you conclude from this test?
A. The patient has definitely sustained a brain
injury.
B. The patient may have a motor nerve injury.
C. The patient may have a sensory nerve
injury.
D. The patient may have a spinal cord injury.
E. More than one of the answers given are
correct.
E
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You are studying regulation of a prokaryotic operon. Experiments show that expression of the operon is increased when levels of biosynthetic product from that pathway are low. Based on this information, what is a likely mode of regulation?
A. The product binds a repressor, allowing it to bind the operator. B. The product binds an activator, helping RNA polymerase to bind the promoter. C. The product binds a repressor, preventing it from binding the operator. D. The product binds to the biosynthetic enzymes, blocking them directly. 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 transcriptional regulation in prokaryotes? Consider Possibilities · Consider the different answer options. Which can you rule out? 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 describes the correct path of air through the human respiratory
A. larynx, trachea, bronchi, bronchioles, alveoli B. trachea, larynx, bronchi, bronchioles, alveoli C. trachea, bronchi, larynx, bronchioles, alveoli D. larynx, bronchioles, trachea, bronchi, alveoli E. bronchi, trachea, larynx, bronchioles, alveoli
The notochord induces the neural plate
____________________ Indicate whether the statement is true or false.
Freshwater lakes in temperate regions will turn over in the ____.
A. fall only B. winter only C. spring only D. summer only E. fall and spring