A specimen has been prepared for viewing with a transmission electron microscope, using uranyl acetate as a negative stain. The area stained by the uranyl acetate will be ________ electron dense compared to specimen itself.
A. equally
B. less
C. more
Answer: C
Biology & Microbiology
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Activities that occur in the cytoplasm include all of the following EXCEPT ____
a. conduction of stimulatory signals b. photosynthesis c. synthesis of DNA d. protein synthesis e. various metabolic reactions
Biology & Microbiology
Which statement is NOT true about yellow bush
lupine? a. It is native to northern California. b. It thrives in nitrogen-deficient soil. c. Its leaves have a dense array of epidermal hairs. d. Its leaves fold in response to wind and heat. e. Its leaves are adapted for water conservation.
Biology & Microbiology
What is the best source of complex carbohydrates?
a. whole grain bread b. red meat c. fish d. vegetables
Biology & Microbiology
What is the deltoid muscle shaped like?
A. a triangle B. a trapezoid C. a long thin line D. a circle E. a square
Biology & Microbiology