The core promoter in eukaryotes is usually composed of which two features?
A. transcriptional start site and TATA box
B. transcriptional start site and enhancer
C. transcriptional start site and response elements
D. enhancer and TATA box
E. response elements and TATA box
Answer: A
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You find a small animal with eight legs crawling up your bedroom wall. Closer examination will probably reveal that this animal also has _____
A) simple, but not compound, eyes B) two pairs of antennae C) a head, thorax, and abdomen D) tracheae and spiracles
Azolla filiculoides is a small aquatic fern that is typically 1-2 cm tall. How would a botanist distinguish it from a bryophyte?
A. It produces seeds. B. It has xylem tissue. C. It has a gametophyte. D. It has chloroplasts. 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 ferns and bryophytes? What other information is related to the question? 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?
Which of the following is thought to be the descendant of ancient bacteria?
a. nuclei b. Golgi bodies c. ER d. mitochondria
e. lysosomesIn a direct ELISA test to screen for drugs in a patient's urine, what is the third step in the test process?
A) substrate for the enzyme is added B) enzyme-labeled antibodies against the drug being tested is added C) the patient's urine sample is diluted D) antibody against the drug being tested is added