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University · Biology

University Biology practice

15 questions on ecology & populations, population genetics, biochemistry. The answer key is a separate download.

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  1. In dN/dt=rN(1−N/K), use r=0.21 per year, N=686, K=690. Find the instantaneous growth rate. Round the final result to 4 decimal places if needed. Answer in individuals/year.

  2. In dN/dt=rN(1−N/K), use r=0.03 per year, N=503, K=640. Find the instantaneous growth rate. Round the final result to 4 decimal places if needed. Answer in individuals/year.

  3. In dN/dt=rN(1−N/K), use r=0.17 per year, N=201, K=470. Find the instantaneous growth rate. Round the final result to 4 decimal places if needed. Answer in individuals/year.

  4. A diploid population sample contains 30 AA, 62 Aa, and 5 aa individuals. Find the frequency of allele A. Round the final result to 4 decimal places if needed.

  5. Under a Michaelis-Menten model, Vmax=75 μmol/min, Km=12 mM, and [S]=58 mM. Calculate v. Round the final result to 4 decimal places if needed. Answer in μmol/min.

  6. A diploid population sample contains 3 AA, 32 Aa, and 4 aa individuals. Find the frequency of allele A. Round the final result to 4 decimal places if needed.

  7. A diploid population sample contains 57 AA, 37 Aa, and 42 aa individuals. Find the frequency of allele A. Round the final result to 4 decimal places if needed.

  8. A diploid population sample contains 40 AA, 35 Aa, and 10 aa individuals. Find the frequency of allele A. Round the final result to 4 decimal places if needed.

  9. Under a Michaelis-Menten model, Vmax=89 μmol/min, Km=15 mM, and [S]=45 mM. Calculate v. Round the final result to 4 decimal places if needed. Answer in μmol/min.

  10. A diploid population sample contains 41 AA, 80 Aa, and 23 aa individuals. Find the frequency of allele A. Round the final result to 4 decimal places if needed.

  11. Under a Michaelis-Menten model, Vmax=25 μmol/min, Km=4 mM, and [S]=18 mM. Calculate v. Round the final result to 4 decimal places if needed. Answer in μmol/min.

  12. In dN/dt=rN(1−N/K), use r=0.05 per year, N=130, K=260. Find the instantaneous growth rate. Round the final result to 4 decimal places if needed. Answer in individuals/year.

  13. In dN/dt=rN(1−N/K), use r=0.15 per year, N=550, K=600. Find the instantaneous growth rate. Round the final result to 4 decimal places if needed. Answer in individuals/year.

  14. In dN/dt=rN(1−N/K), use r=0.08 per year, N=476, K=880. Find the instantaneous growth rate. Round the final result to 4 decimal places if needed. Answer in individuals/year.

  15. A diploid population sample contains 29 AA, 5 Aa, and 38 aa individuals. Find the frequency of allele A. Round the final result to 4 decimal places if needed.