When David Baltimore’s lab tried to determine how an RNA tumor virus replicates its genome, they
discovered that
a. these viruses can make DNA without an RNA template
b. these viruses can make DNA after being treated with RNase
c. these viruses can make more RNA genomes from their RNA genome
d. an enzyme (reverse transcriptase) makes DNA from RNA
e. an enzyme (reverse transcriptase) makes RNA from DNA
D
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Results from lab tests reveal abnormally high endogenous hormone levels, and you suspect a possible tumor. What regions will you ask the MRI technician to focus on?
Cushing's syndrome causes weight gain, excessive sweating, and muscle weakness. It can result from either the production of abnormally high levels of cortisol by the body, or overuse of glucocorticosteroid drugs. You are an endocrinologist working with a Cushing's syndrome patient. She is on hormonal birth control pills and takes an occasional ibuprofen. A. hypothalamus, anterior pituitary, and adrenal cortex B. adrenal cortex only C. hypothalamus and posterior pituitary D. anterior and posterior pituitary 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 cortisol? 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?
Which of the following is FALSE about
camptodactyly? a. Not all individuals who inherit the allele do express the allele. b. The condition affects the shape and mobility of fingers. c. Some individuals have abnormal fingers on only one hand. d. It is caused by a multiple allele system. e. Individual differences in the expression of this gene may stem from a variety of causes
Which antibody is most commonly associated
with an allergic reaction? a. IgG b. IgA c. IgD d. IgM e. IgE
Microbial growth in jellies is inhibited by the (acidic/hypotonic/hypertonic) condition of the food
What will be an ideal response?