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Model Organisms and Developmental Genetics 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. Which of the following is the last stage of mammalian development to occur before implantation in the uterus?

Question 2 2. How are segmentation genes and homeotic genes related?

Question 3 3. Where are pluripotent stem cells located?

Question 4 4. What is the difference between a blastula and a morula?

Question 5 5. Which of the following is NOT a factor that makes studying human development difficult?

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Question 6 6. What might a fly look like if it had a defective pair rule gene?

Question 7 7. If you wanted to better understand cancer in humans, which model organism would be the best to use?

Question 8 8. Why is a knockout mouse useful?

Question 9 9. Which of these statements about genes involved in early fly development is not true?

Question 10 10. Which of the following is NOT true about multipotent stem cells?

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Question 11 11. Which sex would a fly with one X chromosome and one Y chromosome be?

Question 12 12. If you were a scientist trying to study how cell division works, which model organism would make the most sense to use?

Question 13 13. What type of biological molecule from the bicoid gene is localized to the anterior side of the unfertilized egg?

Question 14 14. The technique RNAi was discovered using which model organism?

Question 15 15. Which of the following encode proteins that directly influence the expression of segmentation genes?

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Question 16 16. Which embryonic stage consists of a solid, compact mass of sixteen or more cells?

Question 17 17. Which of the following would NOT be considered in choosing a model organism?

Question 18 18. What is a multipotent stem cell?

Question 19 19. A fly mutant exhibits a phenotype of cell death in the posterior region of each segment. A mutation in what gene is most likely causing this phenotype? Why?

Question 20 20. Why are homeotic genes important?

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Question 21 21. Which group of genes controls the development of segments into appendages?

Question 22 22. What might a fly to look like if it had a defective maternal effect gene?

Question 23 23. A fruit fly has two X chromosomes and two sets of autosomes. Which of the following would be the sex of the fruit fly?

Question 24 24. At what stage do maternal-effect gene products first appear in fruit fly development?

Question 25 25. Why are embryonic stem cells more promising for therapeutic purposes than adult stem cells are?

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Question 26 26. Which of the following is FALSE about removing a gene?

Question 27 27. You have found a gene in mice (the gene is called Sugar) that has a very similar DNA sequence as a gap gene in fruit flies. When the gap gene is defective in fruit flies, a big section of the abdomen of the fly is missing. You want to see if the Sugar gene has the same function as the fruit fly gap gene. What should you do?

Question 28 28. How does cleavage differ from normal mitosis?

Question 29 29. Which of the following is NOT true about HOX genes?

Question 30 30. Which of the following model organisms would be best to study obesity?

Model Organisms and Developmental Genetics 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!

Biology 102: Basic Genetics  /  Science Courses
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