A “solar-hydrogen age” has the possibility of ending
a. smog.
b. oil spills.
c. acid rain.
d. a reliance on nuclear energy.
e. all of these.
Answer: e
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Spontaneous mutation occurs when
A) a DNA base is in an unstable tautomeric form as the replication fork arrives and a mismatched base is inserted. B) a person smokes cigarettes or is exposed to a teratogen for many years. C) the sugars and phosphates in the DNA double helix exchange places. D) thymine temporarily becomes uracil.
A(n) ________ mycelium is a branching network of fibers on and/or beneath the surface of the agar growth medium.
Fill in the blank(s) with the appropriate word(s).
Explain the similarities and differences between direct and indirect methods of measuring microbial growth, and give examples of each
What will be an ideal response?
Where do substrates bind to enzymes?
A) in the active site B) anywhere C) in the effector site D) in the substrate groove