Which of the following statements is TRUE regarding the light reactions?
A) Without water, the system would shut down.
B) ATP and NADPH are needed.
C) They rely on energy provided by glucose synthesis.
D) Without photosystem I, photosystem II could not occur.
E) Oxygen is required.
A
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Which of the following reflects sequence elements conserved in pre-mRNA splice sites?
A. CTAG at the 3' end of the 5' exon B. GAAG at the 3' end of the intron C. AG at the 5' end of the intron D. G at the 5' end of the 3' exon
Within a myofibril, the distance from one Z line to the next is called a(n) __________
Fill in the blank(s) with the appropriate word(s).
Cancer causing mutations are always the result of chromosomal rearrangements
a. True b. False
Which of the following choices is more likely to contain pathogenic organisms?
A) The resident bacterial population is more likely to contain pathogenic organisms. B) The transient bacterial population is more likely to contain pathogenic organisms.