What is unique about reverse transcripatse that makes it different from other DNA polymerases?
A. It has ligase ability built in so host enzymes are not needed to seal up breaks in DNA made during replication.
B. It manufactures a special tRNA molecule that it uses as a primer to initiate replication.
C. It is found exclusively in DNA viruses.
D. It lacks normal proofreading ability leading to many errors during replication.
Answer: D
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Which of the following lists the structures of the female reproductive tract in the proper order from sperm entry to fertilization?
A. cervix, vagina, uterus, oviduct B. vagina, uterus, oviduct, ovary C. vagina, cervix, uterus, oviduct D. endometrium, cervix, uterus, oviduct E. ovary, oviduct, uterus, vagina
Gibberellins affect many processes in plants. In seeds embryos, gibberellins are believed to signal hydrolysis of the stored food reserves through inducing the synthesis of the enzyme a-amylase. Which food source are gibberellins targeting with the release of a-amylase?
A. omega-3 fatty acids B. starch C. glycogen D. fructose E. protein 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 hormone and enzyme function in plants? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? 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?
The drug herceptin (tratuzumab) functions by _____________
A. blocking signals between the external environment and the nucleus B. reactivating ras proteins C. blocking the methylation of histone proteins D. stimulating the activity of DNA repair genes E. switching off overactive proto-oncogenes
A phosphate group is weakly acidic
__________________ Indicate whether the statement is true or false.