Alberta Diploma Exams · Biology 30

Cell Division, Genetics and Molecular Biology

19 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 19 questions

  1. What is the function of a restriction enzyme?
  2. Which type of mutation changes a codon so that it becomes a stop codon?
  3. Which molecule carries amino acids to the ribosome during translation?
  4. A heterozygous tall plant is crossed with a short plant. What is the expected ratio of tall to short?
  5. A colour-blind man (X^c Y) and a carrier woman (X^C X^c) have a child. What is the probability that a daughter is colour-blind?
  6. What does a pedigree with a trait appearing in every generation, passed from an affected parent to about half the children, suggest?
  7. A single nucleotide is deleted from a gene. What is the likely result?
  8. A DNA template reads 3'-TAC GGA-5'. What is the mRNA transcribed from it?
  9. In pea plants, tall (T) is dominant over short (t). What fraction of offspring from Tt x Tt is short?
  10. Which technique amplifies a small sample of DNA?
  11. Which base pairs with thymine in DNA?
  12. What is the product of transcription?
  13. Which phase of the cell cycle includes DNA replication?
  14. Which enzyme joins the new nucleotides to the growing strand during DNA replication?
  15. In gel electrophoresis, which DNA fragments move the farthest?
  16. During which phase of meiosis do homologous chromosomes separate?
  17. What does CRISPR-Cas9 technology allow scientists to do?
  18. The mRNA codon is AUG. Which tRNA anticodon pairs with it?
  19. In a cross between two AaBb individuals, what proportion of offspring will show both dominant traits?

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