Which one of the following statements about virus classification is not correct?
A. Viruses are classified based on whether
their genetic material is double-stranded DNA
or RNA.
B. Viruses are classified based on whether
their genetic material is partially doublestranded
or partially single-stranded.
C. Viruses are classified based on whether
the single-stranded DNA or RNA that serves
as their genetic material has a positive or
negative sense.
D. All of the answer options are correct.
D
You might also like to view...
True or False: The bright colored patterns of a flower's petals act as signals to an insect that nectar and pollen are available, and in this way the sender manipulates the behavior of the receiver
A. true B. false
What is the probability that an offspring will have an ss/RR genotype from a cross of two Ss/Rr individuals?
A. 25% B. 6.25% C. 3.12% D. 12.5%
Important sources of contamination in crowded locations are
A. blood. B. droplets of saliva or mucus. C. restrooms. D. kitchens.
patient with melanoma receives three types of therapy: surgery, radiation, and interferon. Which of these represents something the immune system uses against cancer as well?
A. Radiation -- a class of lymphocytes uses powerful electromagnetic radiation to attack "altered self" cells. B. Interferon -- TH cells and NK cells secrete interferon in response to tumor cells. C. Interferon -- NK cells insert interferon into the membranes of tumor cells, creating large pores that burst the cells. D. Interferon -- In complexes bound with MHC proteins, the interferons indicate the presence of altered tissue to B cells. 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 the actions of the immune system? 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?