All prokaryotes initiate the synthesis of proteins with formylmethionine.
Answer the following statement true (T) or false (F)
False
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In the field of plant transgenics, the use of the bacterium Agrobacterium tumefaciens has proven useful because the
bacterium:a. is not attacked by plant immune systems. b. has been genetically engineered to penetrate the plant cell wall. c. can directly modify the plant genome. d. is found naturally in almost all species of plants. e. is able to transfer a plasmid into host plant cells
How would a mutation allowing a heterocyte to synthesize more chlorophyll affect the process of nitrogen fixation?
A. There will be a decrease in the amount of ammonia converted to nitrogen gas. B. There will be no effect because photosynthesis and nitrogen fixation are not directly related. C. There will be an increase in the amount of nitrogen gas converted to ammonia. D. There will be an increase in the amount of ammonia converted to nitrogen gas. E. There will be a decrease in the amount of nitrogen gas converted to ammonia.
Organisms in an ecosystem are linked to their physical environment through the cycling of _______ and the transfer of _________
A. energy; nutrients B. sunlight; water C. nutrients; energy D. water, sunlight E. nutrients; water
When a cell is placed in a hypotonic environment, the cell will usually undergo:
a. cytolysis b. plasmolysis c. experience a decrease in turgor pressure d. be at equilibrium