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American Military University BIOL 180 Quiz 4 Questions and Answers Already Passed

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Comment: Thank you for completing the Week 4 quiz- please let me know if you have any questions. Part 1 of 6 - Chapter 6 24.0 Points Question 1 of 33 3.0 Points What is the phase that not all cel... ls enter, but is a phase where cells are not actively dividing?  A. G1  B. S  C. G0  D. G2 Feedback: Great job. Question 2 of 33 3.0 Points During which stage in interphase does DNA synthesis occur?  A. G2 phase  694496 Quiz 4 B. Mitosis  C. G1 phase  D. S phase Feedback: Great job. Question 3 of 33 3.0 Points How is it possible that a person can have blood type AA, BO or AB, for example?  A. there are three alleles, but a person only has two alleles  B. there are two alleles, but a person only has one allele  C. there are three alleles, and a person expresses all three copies  D. there are two alleles, and a person gets all three, but only expresses two Feedback: A person gets one copy of an allele from each of their parents, meaning they only have two, even if there are more available. Review the genome in Chapter 6. Question 4 of 33 3.0 Points What are oncogenes?  A. normal cells that are visible on an X-ray  B. genes that cause a cell to become cancerous  C. cells that cause a mass without negative effects  D. genes that are responsible for hair loss Feedback: Great job. Question 5 of 33 3.0 Points In diploid organisms, chromosomes are in a matched pair. What is the term for these chromosomes?  A. heterologous  B. dissimilar  C. homologous  D. unrelated Feedback: Great job. Question 6 of 33 3.0 Points What is the term for a cell’s complement of DNA?  A. chromosome  B. gamete  C. genome  D. nucleus Feedback: Great job. Question 7 of 33 3.0 Points What is the process of cell division called in prokaryotes?  A. Double fusion  B. Cytokinesis  C. Binary fission  D. Single mutation Feedback: Great job. Question 8 of 33 3.0 Points What is the purpose of checkpoints in the cell cycle?  A. to make the division move faster  B. to maintain protein health in the cell  C. to ensure detrimental mutations are not passed on  D. to keep any foreign DNA out of the cell Feedback: Great job. Part 2 of 6 - Chapter 7 24.0 Points Question 9 of 33 3.0 Points What is an individual with an incorrect number (2n-1 or 2n+1) of chromosomes called?  A. euploid  B. autosome  C. polyploid  D. aneuploid Feedback: Great job. Question 10 of 33 3.0 Points During meiosis the 23 pairs of human chromosomes assort independently. Approximately how many possible gametes result from a single person?  A. 23 million  B. 8,000  C. 8 million  D. 23,000 Feedback: Great job. Question 11 of 33 3.0 Points In what phase of meiosis does Independent assortment of homologous chromosomes occur?  A. cytokinesis  B. meiosis II  C. interphase  D. meiosis I Feedback: Remember, meiosis is similar to mitosis, but there are two rounds of division to end with haploid cells. Review Chapter 7. Question 12 of 33 3.0 Points What is the condensation of X chromosomes into Barr bodies during embryonic development in females to compensate for the double genetic dose called?  A. aneuploidy  B. X inactivation  C. polyploidy  D. reduction Feedback: Great job. Question 13 of 33 3.0 Points What is a likely evolutionary advantage of sexual reproduction over asexual reproduction? [Show More]

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American Military University BIOL 180 Quiz 1 - 8 Questions and Answers Already Passed

Part 1 of 7 - Chapter 20 27.0 Points Question 1 of 31 3.0 Points A wolf is an example of what member of the food chain?  A. apex consumer  B. secondary consumer  C. producer  D. tertiar...

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