A C4 plant minimizes photorespiration by
A. stomata that are only opened at night, storing carbon dioxide in malate, and releasing carbon dioxide during the day.
B. having the light reactions and carbon reactions occur in different cells, so oxygen does not come into contact with rubisco.
C. having the light reactions and carbon reactions occur in different cells, so carbon dioxide does not come into contact with rubisco.
D. stomata that are only opened at night, storing oxygen in malate, and releasing oxygen during the day.
B. having the light reactions and carbon reactions occur in different cells, so oxygen does not come into contact with rubisco.
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One of the findings of the human genome project is that humans vary by
a. introns. b. exons. c. SNPs. d. codons. e. deviant bases.
For the yeast galactose metabolizing gene, GAL1, to be transcribed, the regulatory protein produced by the GAL4 gene binds to
A) RNA polymerase. B) upstream activator sequence G (UASG) region. C) a ribosome. D) the operator sequence. E) the repressor protein.
Batrachochytrium dendrobatidis infects the skin of amphibians and leads to their death by blocking ________ ________.
Fill in the blank(s) with the appropriate word(s).
Brachiopods possess __________ germ layers.
a. no b. one c. three d. two e. four