Shoot elongation in a growing bud is due primarily to _____
A) cell division at the shoot apical meristem
B) cell elongation directly below the shoot apical meristem
C) cell elongation localized in each internode
D) cell division at the shoot apical meristem and cell elongation directly below the shoot apical meristem
C
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Which of the following is NOT true regarding ATP synthases?
A. They require proton motive force to make ATP. B. The proton flow is outward during ATP synthesis. C. They span the inner membrane of mitochondria. D. The subunits of ATP synthase undergo conformational changes during ATP production.
ability to control their level of cell's gene expression A is called
A. gene transformation. B. gene regulation. C. gene splicing. D. gene addition. E. gene correction.
Assume brown eyes is completely dominant to blue eyes and this trait is controlled by a single gene. If
400 people in a population of 10,000 have blue eyes, how many people would be expected to be heterozygous for this trait? (Hint: use the Hardy-Weinberg formula) A. 800 B. 540 C. 320 D. 960 E. It is not possible to determine with the information provided.
In Figure 23-2, the taxon labeled II is:
a. monophyletic. b. paraphyletic. c. polyphyletic. d. a clade. e. an outgroup