All phototrophic bacteria use a monophyletic photosystem in photosynthesis, thus there is intense competition for light between different phototrophic bacteria

Indicate whether the statement is true or false.


Answer: FALSE

Biology & Microbiology

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What is the function of the centromere?

A. to attach the DNA to the plasma membrane B. to attach the chromosome to the spindle C. to attach the sister chromatids to each other D. to organize the microtubules to form a spindle

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Taxol is an anti-cancer drug that prevents uncontrolled cell proliferation by stabilizing microtubules, which causes arrest of the cell cycle

If dividing cells are treated with Taxol, at what stage of the cell cycle would you predict the arrest would occur? A. prophase B. metaphase C. anaphase D. telophase E. G1 of interphase

Biology & Microbiology

In __________ one cell from an adult is fused with an enucleated egg. Fill in the blank(s) with the appropriate word(s)

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Oil-degrading bacteria are naturally present in the environment but cannot degrade an oil spill fast enough to avoid ecological damage. How can the actions of these bacteria be sped up?

a. Provide oil for them. b. Provide sugar as a carbon source. c. Provide nitrogen and phosphorus. d. Add water. e. Add NaCl.

Biology & Microbiology