Which of the following require the cell to use energy?
A. Osmosis
B. Facilitated diffusion
C. Diffusion
D. Endocytosis
Answer: D
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The standard state of dilute aqueous solutions is at a temperature of ________°C (298 K), ________ atmosphere(s) of pressure, and with products and reactants present in concentration of ________ mol/L.
Fill in the blank(s) with the appropriate word(s).
A species whose effect on biological diversity is disproportionate to their own abundance is termed:
a. predator. b. keystone. c. carnivore. d. producer. e. herbivore.
DNA strands can be clipped crosswise at selected positions by using enzymes called ________.
A. palindromes B. reverse transcriptases C. restriction endonucleases D. ligases E. DNA polymerases
Once a probe has hybridized with a gene of interest in a DNA library, the hybrid is identified by detection of ____
a. its sticky tail b. its radioactive label c. restriction enzymes d. mRNA e. the vector