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MCAT Biology Practice Test 9: Cell Genome and Reproduction
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MCAT Biology Practice Test 9: Cell Genome and Reproduction
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25 Questions

1. Does the nuclear envelope always disassemble during mitosis?
2. Which of the following is true concerning pluripotent stem cells?
3. Which of the following is the best description of a proto-oncogene?
4. The component of the RNA polymerase holoenzyme that determines the specificity of the precise DNA binding site in eukaryotes is
5. A ribozyme is
6. What is the relationship between a centromere and a kinetochore?
7. The eukaryotic equivalent of the bacterial hairpin terminator is
8. Certain genotypes of human papillomavirus (HPV) can cause cancer. This ability exists because
9. When two same-sized chromosomes are found in a nucleus, one from the mother and one from the father, these are referred to as
10. In what way is fetal development linked to amoebas?
11. How is an aster associated with mitosis?
12. The replisome is best associated with
13. Which of the following is NOT known to initiate apoptosis?
14. The most common process whereby a single cell will divide into two genetically identical daughter cells that will, in turn, differentiate into cells that will follow separate differentiation pathways is called
15. Which of the following is the best description of a nucleosome?
16. Many researchers are now identifying five, rather than four, stages of mitosis. What is this new stage called?
17. Which of the following is NOT a difference between meiosis and mitosis?
18. What role does the protein identified as the product of the p53 gene have in development?
19. In what way are the mechanisms controlling gene expression by protein and steroid hormones similar?
20. What is the relationship, if any, between oncogenes and apoptosis?
21. Interference in cell-to-cell signaling can be caused by
22. An inversion mutation within spacer DNA would most likely do what to the resulting phenotype?
23. When producing an antibody, a lymphocyte will transcribe a single message. However, two different proteins may be translated from that single mRNA strand. How does this occur?
24. It has been calculated that, through a mechanism of the accumulation of random point mutations, it would require more than 200 billion years to generate a new functional gene de novo. What alternative mechanism has been suggested as a viable alternative?
25. What evidence suggests that the random inactivation of the Barr body occurs very early in fetal development?

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