If the protein Dicer is not functioning, then which kind of posttranscriptional gene regulation is most likely affected?
A) microRNA (miRNA) and small interfering RNA (siRNA)
B) alternative splicing
C) alternative adenylation
D) only microRNA (miRNA), but not small interfering RNA (siRNA)
E) small interfering RNA (siRNA)
Answer: A
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Four of the following will stimulate the production of males in water fleas. Which one is the exception?
a. spring b. warm water c. salty water d. high competition for resources e. crowding
Of the earth's land, what is the maximum percentage now being used for agriculture?
a. 10 b. 15 c. 25 d. 50 e. 75
Which of the following allows the compilation of time-of-entry maps?
A) the use of many replicates of each experiment B) the use of appropriate controls repeatedly C) the fact that gene entry can proceed in either direction D) the observation that Hfr genes recombine so efficiently E) the recognition of phenotype interaction
Which of these is not a current success of biotechnology?
a. advances in the treatment of diseases, such as juvenile diabetes b. development of farm machinery that more efficiently harvests crops c. development of crops that are resistant to pests d. creation of foods with enhanced nutrition e. forensic techniques that use DNA for identification