A new experimental pesticide is being tested by a large agricultural chemical company. An unfortunate side effect in plants treated with this new product is the partial inhibition of ferredoxin-NADP+ reductase
Given this observation, which of the following would you expect to observe in the photosynthetic cells of these plants?
A. decreased rate of trios phosphate
production
B. decreased levels of NADP+ in the
chloroplast
C. decreased levels of ATP in the chloroplast
D. decreased rate of cyclic electron transport
A
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The origin of the mitochondrion and chloroplast by endosymbiosis, hypothesizes that these organelles originated by
A. the fusion of two archean cells to form the eukaryote with the eukaryotic mitochondrion and chloroplast inside. B. the absorption of RNA from prokaryotic cells. C. prokaryotic cells being engulfed and becoming internal symbionts within an early eukaryotic cell. D. only the absorption of DNA from dead prokaryotic cells used as food. E. prokaryotic cells being engulfed and becoming external symbionts within an early bacteria cell.
If a DNA template strand has a sequence of 3? TACAATGTAGCC 5?, the RNA produced from it will be which sequence?
A. 3?TACAATGTAGCC5? B. 5?ATGTTACATCGG3? C. 5?AUGUUACAUCGG3' D. 3?AUGUUACAUCGG5? E. 3?ATGTTACATCGG5?
Polyploidy
a. can occur naturally. b. occurs when there are more than two sets of chromosomes. c. means more than two complete chromosome sets d. is responsible for some of our major foods. e. is all of these.
In gel electrophoresis, DNA molecules move toward the ________ electrode because they have an overall ________ charge.
A. negative; negative B. positive; positive C. negative; positive D. positive; negative E. negative and positive; neutral