BRCC Biology 1033 Exam 3 Questions and Answers(A+ Solution guide)

1. _________ can convert proto-oncogenes into oncogenes. A. Gene amplifications B. Retroviral insertions C. Chromosomal translocations D. Missense mutations E. All of the answers are correct - Answer-E 1. A defective ribosome would have the MOST detrimental effect on A. Translation B. Replication C. Transcription D. Replication and transcription - Answer-A 1. A gene created from the fusion of two gene fragments is considered a A. Tumor-suppressor gene B. Proto-oncogene C. Structural gene D. Regulatory gene E. Chimeric gene - Answer-E 1. A mutation causes a gene to become overactive, contributing to uncontrolled cell growth. Which term best describes this gene? A. Tumor-suppressor gene B. Oncogenic C. Spliced gene D. Alternatively spliced gene - Answer-B1. A mutation occurs in a gene that encodes a G1 cyclin, such that the protein is unable to bind to its CDK. How will it affect the cell cycle? A. The cell will be stuck in G1 and will not advance through the cell cycle. B. The cell will replicate its DNA, but will be unable to progress through mitosis. C. The cell will replicate its DNA and progress through mitosis, causing uncontrolled cell division, and leading to cancer. D. The cell will proceed thru mitosis without replicating its DNA - Answer-A