SCIN130 B011 / SCIN130 - Introduction to Biology with Lab Quiz 5 (DNA) | 100 out of 100 | Download To Score An A.

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Bio Quiz 5 Question 1 of 31 3.0 Points Which nitrogenous base is present in RNA and not DNA? • A. uracil • B. thymine • C. cytosine • D. adenine • E. g... uanine Feedback:Great job. Question 2 of 31 3.0 Points How long would the peptide be that is translated from the mRNA sequence: 5’- AUGAUCGAUCACUAA-3’? • A. 5 • B. 3 • C. 2 • D. 1 • E. 4 Feedback:Amino acids are coded using a 3 nucleotide system, so for every 3 nucleotides, there is one amino acid added to a peptide sequence. Review translation in Chapter 9. Question 3 of 31 3.0 Points 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 Feedback:Great job. Question 4 of 31 3.0 Points What is the central dogma of genetic information? • A. DNA produces proteins directly • B. proteins code for DNA and RNA • C. RNA stores our genome for safety • D. DNA encodes RNA, which in turn encodes protein Feedback:Great job. Question 5 of 31 3.0 Points What is the most common method for repairing nucleotide errors in DNA? • A. thymine dimers • B. nucleotide excision repair • C. uracil base replacement • D. mismatch repair Feedback:Great job. Question 6 of 31 3.0 Points How is it possible that each daughter cell during cell replication receives an identical copy of the DNA? • A. DNA is replicated during the synthesis phase of the cell cycle, prior to mitosis or meiosis • B. DNA is replicated following mitosis or meiosis, so is transferred after the new cells are formed • C. DNA is not identical in every cell, so all daughter cells have different copies • D. DNA is replicated individually in each new cell after meiosis and mitosis Feedback:Great job. Question 7 of 31 3.0 Points Which statement best describes eukaryotic chromosomes? • A. Double-stranded, linear • B. Single-stranded, circular • C. Single-stranded, linear • D. Double-stranded, circular Feedback:Eukaryotes differ from prokaryotes in that their DNA is not circular. Review Chapter 9. Question 8 of 31 3.0 Points The steps from DNA to mRNA are initiation, elongation and what? • A. commencement • B. termination • C. template • D. origin Feedback:Great job. Question 9 of 31 3.0 Points A nucleotide includes all of the following parts EXCEPT? • A. deoxyribose • B. nitrogenous base • C. phosphate group • D. carbon dioxide Feedback:Great job. Part 2 of 7 - Chapter 10 27.0 Points Question 10 of 31 3.0 Points Why are plants more difficult to make into transgenic species? • A. they are easier because they don’t move • B. the presence of chloroplasts, so photosynthesis is running • C. mammals are regulated, plants are not • D. presence of cell wall, preventing bacteria Feedback:Great job. Question 11 of 31 3.0 Points Gel electrophoresis separates charged molecules on the basis of what? • A. contents and charge • B. temperature and shape • C. shape and color • D. size and charge Feedback:Great job. Question 12 of 31 3.0 Points What do the different bands in the same lane of an agarose gel represent? • A. similar genetic make up • B. different organisms • C. different size pieces • D. links of protein Feedback:Great job. Question 13 of 31 3.0 Points What is a technique used to rapidly increase the number of copies of specific regions of DNA? • A. Gel electrophoresis • B. Polymerase chain reaction • C. Cell lysing • D. DNA precipitation Feedback:Great job. Question 14 of 31 3.0 Points Why was Dolly a Finn-Dorset and not a Scottish Blackface? • A. the cytoplasmic donor was from a Scottish Blackface • B. enucleation occurred with a Scottish Blackface egg • C. the nucleus came from a Finn-Dorset • D. the surrogate ewe was a Finn-Dorset Feedback:Great job. Question 15 of 31 3.0 Points What is a plasmid with foreign DNA inserted referred to as? • A. foreign DNA • B. host DNA • C. recombinant DNA • D. restriction DNA Feedback:Great job. Question 16 of 31 3.0 Points What is an example of a transgenic organism? • A. a traditional breeding project where red and green apples are crossed • B. an heirloom tomato variety • C. a tomato with a gene for freezing tolerance from fish • D. mating of a horse and a donkey to produce a mule Feedback:Great job. Question 17 of 31 3.0 Points What compound carries a gene from one organism into a bacterial cell? • A. an enzyme • B. a nucleotide • C. a plasmid • D. a promoter Feedback:Great job. Question 18 of 31 3.0 Points What is an example of a genetically modified organism? • A. a natural cross between zucchini and acorn squash • B. mating of a horse and donkey to produce a mule • C. a plant produced through traditional breeding • D. a red apple with a gene from another apple cultivar Feedback:Great job. Part 3 of 7 - Lecture Material 9.0 Points Question 19 of 31 3.0 Points What are protozoans that derive their energy from chemicals in the environment as opposed to solar energy called? • A. chemoautotroph • B. photoautotroph • C. chemoheterotroph • D. photoheterotroph Feedback:Great job! Question 20 of 31 3.0 Points What are some of the oldest known organisms on Earth? • A. protozoa • B. bacteriophages • C. plant fungi • D. arahae bacteria Feedback:Great job! Question 21 of 31 3.0 Points Although mutations can produce a wide range of phenotypic results, most are actually what? • A. deleterious and dominant • B. deleterious and recessive • C. advantageous and recessive • D. advantageous and dominant Feedback:Great job! Part 4 of 7 - Part 3: Lab Lecture Material 9.0 Points Question 22 of 31 3.0 Points How many significant figures does 0.105 have? • A. 2 • B. 4 • C. 3 • D. 1 Feedback:Correct! The “1” and “5” are significant digits, so, the “0” between them is also significant. Question 23 of 31 3.0 Points Which common piece of lab equipment is used to measure temperature? • A. Ohmmeter • B. Thermometer • C. Scale • D. Beaker Feedback:Correct! A thermometer is a device that is used to measure temperature. Question 24 of 31 3.0 Points 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 Feedback:Correct! Yes, the measurements agree. Based on the accuracy of the thermometer, the 24.9 ˚C measurement indicates the temperature can be 24.8 ˚C and 25.0 ˚C and the 25.1 ˚C measurement indicates the temperature can be 25.0 ˚C and 25.2 ˚C. The two measurements together tell us that the temperature is 25.0 ˚C. Part 5 of 7 - Lab Material 15.0 Points Question 25 of 31 3.0 Points What is the relative length of the tobacco mosaic virus? • A. 1000 nm • B. 25 nm • C. 100 nm • D. 250 nm Feedback:Great. Question 26 of 31 3.0 Points What is a virus that is transmitted from a vertebrate animal to humans? • A. host • B. parasite • C. vector • D. zoonic Feedback:Great. Question 27 of 31 3.0 Points Which was the first virus to be described? • A. Ebola • B. HIV • C. TMV • D. Adenovirus • E. T7 Feedback:Great. Question 28 of 31 3.0 Points Which is the largest virus overall, when comparing relative sizes? • A. Adenovirus • B. Ebola • C. Rabies • D. Zika • E. Influenza Feedback:Great. Question 29 of 31 3.0 Points What is the approximate diameter of the Zika virus? • A. 50 nm • B. 500 nm • C. 1000 nm • D. 100 nm Feedback:Great. Part 6 of 7 - Lab Essay 5.0 Points Question 30 of 31 5.0 Points In a few sentences, what was the overall purpose of the lab for this week? You should include 1-2 sentences on the methods and then the overall reason. The overall purpose of the lab for this week was to explore more on the viruses that are around us, the similarities, and the differences. We got to study what the structures were, the host, vaccinations, and how they transmit to one thing to another. Comment:This lab allowed us to compare and contrast viruses that are often mentioned in the news or in research by identifying characteristics such as the presence of an envelope, genomic structure, type of genome, and mode of replication; how they affect a variety of hosts; and how vaccines play a role with these viruses. Through virtual observations, we could also identify relative sizes of these well-known viruses Part 7 of 7 - Lab Upload 8.0 Points Question 31 of 31 8.0 Points Please upload your completed Lab Packet for this week. Make sure your name is on the top in the space provided. RowanLab5.docx(2,148.77 KB) Feedback:Thank you. I will review this. Comment:Lab credit earned! [Show More]

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