What part of the plasma membrane helps keep it fluid?
Answer: cholesterol
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Which of the following is not true of the stringent response?
A. Uncharged tRNA binds to the A site of the ribosome. B. Stringent factor binds to the ribosome. C. ppGpp nucleotide is synthesized in two steps. D. ppGpp binding to the ribosome increases rRNA gene expression.
During conscious quiet rest, the brain is emitting ____
a. alpha waves b. beta waves c. delta waves d. gamma waves e. rapid, irregular waves
How does brightfield microscopy allow images to be visualized?
A) Specimens are illuminated with white light. B) Electrons strike the specimen being examined. C) Specimens are fixed and have bright fluorescent molecules attached to them. D) Specimens are illuminated with blue light to visualize internal features of cells smaller than 100 nm. E) Specimens are viewed under phased light to improve magnification.
The data in Figure 10.7 support which of the following trade-offs?
A) the size of offspring is correlated with the number of offspring B) the size of offspring is correlated with the age at maturity C) the number of offspring is correlated with growth D) the number of offspring is correlated with survival