Practice Quiz

SAT Biology Subject Test Practice Questions - Question List

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76. In an experiment, mice were infected with helminthes and observed for population change. It was found that mice became sickly and the population decreased. This relationship is an example of ________.
  1. Commensalism
  2. Parasitism
  3. Mutualism
  4. Competition
  5. Community
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77. M Section

Which of the following can greatly affect the speed of an enzymatic reaction?
I. pH
II. temperature
III. presence of inhibitors
  1. I only
  2. II only
  3. III only
  4. I and II only
  5. I, II, and III only
See answer
78. A mutation in DNA that changes the DNA sequence but does not alter the amino acid of a protein is known as ____________.
  1. Silent mutation
  2. Frameshift mutation
  3. Insertion mutation
  4. Deletion mutation
  5. Point mutation
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79. Nucleic acids are composed of which of the following:
I. Nitrogenous base
II. Sugar
III. Phosphate
  1. I only
  2. II only
  3. III only
  4. I and III only
  5. I, II, and III only
See answer
80. Translation involves which two types of compounds ______________.
  1. DNA and tRNA
  2. RNA and DNA
  3. mRNA andDNA
  4. tRNA and mRNA
  5. mRNA and protein
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