SCIN 130 AMU Quiz 5 Introduction to Biology American Military University assistance is available on Domyclass
SCIN 130 AMU Quiz 5
| Part 1 of 7 – Chapter 9 Question 1 of 31 What is the name of the model for DNA replication? A. semiconservative B. reactionary C. wavering D. progressive E. conservative Question 2 of 31 The steps from DNA to mRNA are initiation, elongation and what? A. template B. origin C. termination D. commencement Question 3 of 31 Which nitrogenous base is present in RNA and not DNA? A. cytosine B. uracil C. guanine D. thymine E. adenine Question 4 of 31 How is it possible that each daughter cell during cell replication receives an identical copy of the DNA? A. DNA is replicated following mitosis or meiosis, so is transferred after the new cells are formed B. DNA is not identical in every cell, so all daughter cells have different copies C. DNA is replicated during the synthesis phase of the cell cycle, prior to mitosis or meiosis D. DNA is replicated individually in each new cell after meiosis and mitosis Question 5 of 31 How is it possible that multiple sites of DNA replication can exist inside the cell? A. there are multiple origins of replication B. there are not multiple sites of replication C. genes are replicated quickly, so there are usually >4 of one gene at a time D. during cytokinesis, DNA is replicated at twice the rate Question 6 of 31 Why does one strand of DNA replicate as a continuous strand, and the other in fragments? A. they are parallel, and DNA polymerase can synthesize from 5’ to 3’ B. they are parallel, and DNA polymerase can synthesize in either direction C. they are anti-parallel, and DNA polymerase can only synthesize from 5’ to 3’ D. they are anti-parallel, and DNA polymerase can synthesize in either direction Question 7 of 31 Which statement best describes eukaryotic chromosomes? A. Double-stranded, circular B. Single-stranded, circular C. Double-stranded, linear D. Single-stranded, linear Question 8 of 31 What direction do the two strands of DNA run? A. transversal B. perpendicular C. anti-parallel D. parallel Question 9 of 31 DNA is said to be in what shape? A. a triple helix B. a double corkscrew C. a double helix D. a triple twist |
| Part 2 of 7 – Chapter 10 Question 10 of 31 The introduction of a non-mutated gene at a random location to cure a disease by replacing a protein is called what? A. gene therapy B. reverse genetics C. recombinant DNA D. transgenic organism Question 11 of 31 What is an example of a transgenic organism? A. a tomato with a gene for freezing tolerance from fish B. an heirloom tomato variety C. mating of a horse and a donkey to produce a mule D. a traditional breeding project where red and green apples are crossed Question 12 of 31 Why are plants more difficult to make into transgenic species? A. mammals are regulated, plants are not B. presence of cell wall, preventing bacteria C. the presence of chloroplasts, so photosynthesis is running D. they are easier because they don’t move Question 13 of 31 What is an example of a genetically modified organism? A. a red apple with a gene from another apple cultivar B. a plant produced through traditional breeding C. mating of a horse and donkey to produce a mule D. a natural cross between zucchini and acorn squash Question 14 of 31 What is a technique used to rapidly increase the number of copies of specific regions of DNA? A. Cell lysing B. Gel electrophoresis C. Polymerase chain reaction D. DNA precipitation Question 15 of 31 Gel electrophoresis separates charged molecules on the basis of what? A. shape and color B. temperature and shape C. contents and charge D. size and charge Question 16 of 31 What do the different bands in the same lane of an agarose gel represent? A. similar genetic make up B. different size pieces C. different organisms D. links of protein Question 17 of 31 What compound carries a gene from one organism into a bacterial cell? A. a plasmid B. a promoter C. a nucleotide D. an enzyme Question 18 of 31 What is a basic definition of cloning? A. increasing the number of plants B. increasing the life expectancy of animals C. creation of a similar copy D. creation of a perfect replica |
| Part 3 of 7 – Lecture ELF Question 19 of 31 Why are some viruses species- or tissue-specific? A. The inner DNA must be compatible with the host DNA. B. The inner RNA must be compatible with the host RNA C. The RNA must first be added to the nucleus of the host, then added to the cell D. The proteins in its outer shell must be able to interact with host cellular proteins. Question 20 of 31 Asexual reproduction where the circular chromosome replicates and then the cell membrane and cell wall partition the chromosomes into two new cells is know as what? A. Plant pollination B. Viral integration C. Binary fission D. Animal reproduction Question 21 of 31 What are protozoans that derive their energy from chemicals in the environment as opposed to solar energy called? A. chemoautotroph B. photoheterotroph C. chemoheterotroph D. photoautotroph |
| Part 4 of 7 – Part 3: Lab ELF Question 22 of 31 A digital thermometer is calibrated to be accurate within +/- 0.1 ˚C. Two temperature measurements are then taken that show the temperature is 24.9 ˚C and 25.1 ˚C? Do these measurements agree? A. Yes B. No C. Not enough information is given Question 23 of 31 Which common piece of lab equipment is used to measure temperature? A. Thermometer B. Scale C. Ohmmeter D. Beaker Question 24 of 31 What does accuracy refer to when discussing data measurement? A. The number of significant digits in the final measurement B. How close a measured value is from a standard or established value C. Whether or not a measurement was performed correctly D. How close a measured value is to previous measured values |
| Part 5 of 7 – Lab Material Question 25 of 31 Which was the first virus to be described? A. Ebola B. Adenovirus C. HIV D. T7 E. TMV Question 26 of 31 What is a virus that is transmitted from a vertebrate animal to humans? A. parasite B. zoonic C. vector D. host Question 27 of 31 Which is the largest virus overall, when comparing relative sizes? A. Influenza B. Adenovirus C. Zika D. Rabies E. Ebola Question 28 of 31 What is the approximate diameter of the Zika virus? A. 500 nm B. 100 nm C. 1000 nm D. 50 nm Question 29 of 31 What is the relative length of the tobacco mosaic virus? A. 100 nm B. 1000 nm C. 250 nm D. 25 nm |
| Part 6 of 7 – Lab Essay Question 30 of 31 In 2-3 sentences, what was the overall purpose of the lab for this week? |
| Part 7 of 7 – Lab Upload Question 31 of 31 Please upload your completed Lab Packet for this week. Make sure your name is on the top in the space provided. |