Test your basic knowledge |

GRE Molecular Biology

Subjects : gre, science, biology
Instructions:
  • Answer 40 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Describe the lac operon model






2. What is a homozygous organism?






3. Define Inducible enzymes






4. Define Repressor Enzymes






5. What are R-Plasmids?






6. Who is Thomas Hunt Morgan






7. What are characteristics of X-Linked dominant traits?

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8. What is the Operon model?






9. What 3 ways do bacteria recombine genes and shuffle their gene pools from generation to generation in the absence of sexual reproduction?






10. What is Genomic Imprinting?






11. What is the process of Transformation?

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12. What does it mean to be a diploid organism?






13. What is a heterozygous organism?






14. What are characteristics of autosomal recessive traits?






15. What is an Operon?






16. What is the Triplet Repeat Extension? What diseases are caused by this?






17. When does Codominance occur?






18. What does the Law of Independent Assortment state?






19. What is Conjugation?






20. Describe how incomplete dominance occurs and what is it.






21. What is Mitochondrial (maternal) Inheritance?

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22. When does Epistasis occur?






23. Males cannot be carriers of sex linked traits






24. Define Penetrance






25. What are plasmids?






26. Genomic Imprinting is also known by what other name?






27. What are the parts of a lac operon? What is its function?






28. In Bacteria - in what region of the cell is the DNA found?






29. What is Transduction?






30. Dominant trait






31. Define Allele






32. Recessive alleles when transcribed produce ___________ that cannot preform their given function






33. Dominance has nothing to do with __________. Dominant alleles are not more common in populations than recessive alleles. Dominance is not an allele that overpowers a recessive allele.






34. Define genotype






35. What are characteristics of X-linked recessive traits?






36. What is a Polygene?






37. Define phenotype






38. What is genetic anticipation?






39. What does the Law of Segregation state?






40. What are characteristics of autosomal dominant traits?