Which of the following statements about the oomycote algae is FALSE?
A) They form hyphae.
B) They produce zoospores in a sporangium.
C) They cause plant diseases.
D) They have chlorophyll.
E) They reproduce sexually.
D
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Mice lacking the ability to make caspase-9 die as the result of numerous defects. During the necropsy (animal autopsy) of the animal you note that the brains of these mice are
A) unregulated growth of the nerve cells. B) lack of apoptosis of some cells. C) overstimulation of G-protein-mediated transduction. D) overproduction of the Etr1 receptor protein. E) all of the above
A surge in __________ triggers tadpole
metamorphosis. a. testosterone b. cortisol c. atrazine d. thyroid hormone e. pheromones
For animals to reproduce on land they needed to use
A. internal fertilization. B. asexual reproduction. C. puddles of water. D. None of the above is correct.
During DNA replication the 3' to 5' exonuclease activity of DNA polymerases I and III is required for?
a. polymerization of new DNA strands b. joining of Okazaki fragments following removal of RNA primers c. removal of RNA primers d. proofreading of mistakes made during DNA synthesis