A new plant forms from a stem that broke off of the parent plant. This is an example of _____
a. parthenogenesis c. vegetative reproduction
b. exocytosis d. nodal growth
C
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In the above figure, which letter points to the prostate gland?
A) A B) B C) C D) D E) E
Which one of the following Gram-positive bacteria is most likely to be the cause of a nosocomial infection?
A) Clostridium difficile B) Staphylococcus aureus C) Streptococcus pneumoniae D) Streptococcus pyogenes
__________ are symbionts with young roots that enhance a plant's ability to absorb mineral ions from
soil. Fill in the blank(s) with the appropriate word(s).
How do chromatin-remodeling complexes work?
A. They add methyl groups to the tails of histones in order to attract other proteins. B. They use the energy from GTP hydrolysis to alter the arrangement of nucleosomes, rendering certain regions of the DNA more accessible to other proteins. C. They use the energy from ATP hydrolysis to alter the arrangement of nucleosomes, rendering certain regions of the DNA more accessible to other proteins. D. They remove acetyl groups from the tails of histones, rendering the DNA more accessible to other proteins. E. They bind to nucleosomes in the 30-nm fiber and induce another level of packing, obscuring DNA from binding by other proteins.