Practice Quiz

IB Biology Exam Prep - Question List

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21. 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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22. 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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23. Plant cells differ from animal cells by the presence of _________.
  1. Cell membrane
  2. Cytoplasm
  3. Nucleus
  4. Cell wall
  5. Vacuole
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24.
Which of the following describes having three copies of a chromosome?
  1. Monosomy
  2. Disomy
  3. Trisomy
  4. Tetrasomy
  5. Pentasomy
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25. 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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