If 14C-labeled uracil is added to the growth medium of cells, what macromolecules will be labeled?
A) DNA
B) RNA
C) both DNA and RNA
D) proteins
B
Biology & Microbiology
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Four of the five answers listed below are molecules that directly participate in muscle contraction within a muscle fiber. Select the exception
a. acetylcholine b. ATP c. calcium d. actin e. myosin
Biology & Microbiology
What factors determine the tree line in alpine areas? Check all that apply.
A. low temperatures B. high winds C. light availability D. water availability E. pH of soil
Biology & Microbiology
The ________ method provides an estimate of the CFUs (colony-forming units) in a sample.
A. Coulter-counter B. viable plate-count C. streak-plate D. turbidity E. direct microscopic-count
Biology & Microbiology
The study of the immune system is known as:
Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology