Many bacteria that exhibit gliding motility are able to use as a nutrient source insoluble material that they encounter while gliding.
Answer the following statement true (T) or false (F)
True
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Air flow in a microbiology laboratory should be:
a. from lower to higher risk areas. b. minimized as much as possible. c. optimized to prevent the settling of dan-gerous aerosols. d. well-filtered by recirculating it through numerous filters before recycling.
Helicase ____
a. proofreads the newly synthesized DNA b. relieves over-twisting ahead of the DNA replication fork c. rewinds the newly synthesized DNA strands into a double-stranded helix d. unwinds the double-stranded DNA helix e. binds DNA polymerase to the template strand
The anterior pituitary secretes more ACTH, leading to more glucocorticoids in plasma, which causes the anterior
pituitary to then secrete less ACTH. This is an example of ____ regulation.
a. amplification only b. positive feedback only c. negative feedback d. cascading feedback e. both amplification and positive feedback
Reptiles resemble __________ in being able to
__________. a. ray-finned fishes; freely leave the water b. birds; breathe by use of lungs c. ostracoderms; utilize their jaws d. amphibians; exchange gases across their skin e. lobe-finned fishes; exchange gases across their gills