In a chemical reaction, the standard free energy change (?G°') is calculated to be -3.67 cal/mol. What can be said of the chemical reaction?
A) The reaction is at equilibrium under standard conditions.
B) The reaction is spontaneous under standard conditions.
C) The reaction is not spontaneous under standard conditions.
D) Reactants predominate over products at equilibrium under standard conditions.
E) There can be no reaction.
B) The reaction is spontaneous under standard conditions.
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Both DNA replication and PCR require: (check all that apply)
_____ DNA polymerase. _____ DNA helicase. _____ a DNA template. _____ a thermocycler machine. _____ plasmid DNA.
Which of the following cofactors is very important in the synthesis of purines?
A. Acetyl-CoA B. Folic acid C. Cytidine diphosphate D. Glutathione
A plant species where each plant can only make either male or female flowers is called a ____ species
and always has ____ flowers.
a. monoecious; complete b. dioecious; imperfect c. dioecious; complete d. monoecious; imperfect e. monoecious; perfect
Transition mutations can result from ________.
A. a small insertion or deletion B. incorporation of a base analog that exhibits different base-pairing properties from the base it replaces C. incorporation of a base analog that exhibits different base-pairing properties from the base it replaces and chemical modification of an existing base in the DNA so that in the next round of replication it will pair differently from the unmodified base D. chemical modification of an existing base in the DNA so that in the next round of replication it will pair differently from the unmodified base