Basic Genetics Concepts Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. DNA methylation helps regulate:

Question 2 2. Adding a methyl group has what effect?

Question 3 3. Scientists are discovering that epigenetic traits may be passed not only from cell to cell, but also from mother to offspring. This type of inheritance is called _____.

Question 4 4. Mutations are defined as which of the following?

Question 5 5. Natural selection is based on the which of the following ideas?

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Question 6 6. What are the differences between somatic and germ-line mutations?

Question 7 7. How many genotypes can result from a dihybrid cross?

Question 8 8. How many phenotypes can result from a dihybrid cross?

Question 9 9. A dihybrid cross involves ______.

Question 10 10. If a couple carries genotypes for a disease that is inherited in a dominant/recessive model, what is the likelihood that their child(ren) will inherit the disease?

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Question 11 11. What is a monohybrid cross?

Question 12 12. In the illustration, what characteristics for body length will the offspring show and in what ratio (assuming there are large numbers of offspring)?

Question 13 13. How is sex-linked inheritance defined?

Question 14 14. Why are Y-linked traits only inherited by males?

Question 15 15. Why are X-linked traits expressed more often in males than females?

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Question 16 16. What is the name of the location where the sister chromatids attach to one another?

Question 17 17. Which of the following best describes a chromosome?

Question 18 18. How many chromosomes do people generally have?

Question 19 19. Sex determination typically leads to the development of which of the following?

Question 20 20. When does sex determination occur?

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Question 21 21. Which of the following statements about X-inactivation is FALSE?

Question 22 22. Mendel was a ______.

Question 23 23. Mendel's experiments led to modern genetics and the use of ______.

Question 24 24. ______ tells us that alleles separate and are passed down to the offspring.

Question 25 25. How does gene therapy work?

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Question 26 26. What is a monogenic trait?

Question 27 27. What is an allele?

Question 28 28. What type of organism has two copies of every gene?

Question 29 29. The trait which is expressed in a heterozygous state is known as

Question 30 30. The trait which is not expressed in a heterozygous state is known as

Basic Genetics Concepts Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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