Chlamydia is the most frequently reported bacterial sexually transmitted disease in the United States
Indicate whether the statement is true or false
TRUE
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Imagine that a Toll-like receptor (TLR) gene has duplicated and mutated, creating a leucine-rich region binding pocket that can now bind to the hemagglutinin protein in the envelope of influenza virus. What do you predict will happen to this novel gene?
A. It will be selected for and over evolutionary time will become an even better receptor for HA protein. B. It will spread from species to species. C. It will undergo VDJ rearrangement. D. It will continue to mutate, perhaps changing to bind other proteins or becoming deleted. 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 TLRs? 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 molecule causes actin and myosin to detach?
a. ATP b. calcium c. potassium d. acetylcholine e. ADP
Embryonic stem cells derived from blastocysts are pluripotent, and therefore useful in stem cell research because they
________. a. are viable under a wide range of laboratory conditions b. do not replicate and are therefore stable long-term c. can form all cells, tissues, and organs of the human body d. are specialized and therefore arrested in G0 e. function to replace damaged or diseased body parts in adults
During regulation of biofilm formation in Pseudomonas, cells leave the biofilm when levels of cyclic dimeric GMP are high.
Answer the following statement true (T) or false (F)