Around what percentage of all genes encode membrane proteins?
A. 0%
B. 10%
C. 25%
D. 50%
E. 75%
C. 25%
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Which one of the following explains what xylem loading is?
A. when the xylem is filled with sugars B. right after the xylem is filled with minerals C. when the xylem is filled with water D. xylem loading never occurs E. phloem has given up its water to the xylem
In what way is new technologies beneficial as we work to mitigate climate change?
A. The long-term effects of some technological solutions may be unknown. B. Many technologies have the potential to reduce the impacts of the greenhouse effect and prevent climate change from getting any worse. C. Technologies that require large-scale implementation require more funding than may be available. D. The public often needs to be convinced of long-term changes to their way of life.
Which of the following represents a modular organism?
A) lizard B) coral C) dog D) ant
All of the following made the separation of these DNA fragments possible EXCEPT
a. the negative charge of the DNA b. the percentage of G + C bases c. the porous nature of the gel d. different fragment sizes e. positive electrode placement