WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 7, Problem 5MC
Summary Introduction
Introduction:
“Bt” comes from Bacillus thuringiensis.
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Which of the following is an outcome that could be produced by the application of the biotechnology as described?
A.
using PCR to modify a crop plant for higher yields
B.
introducing a recombinant DNA plasmid into a cell to trigger RNAi
C.
identifying SNPs to match birth parents to an adopted child
D.
using RT-PCR to generate copies of a gene to be expressed for insulin production
An SNP is found associated with individuals who have diabetes. Which statement is true?
A.
All individuals with the SNP will have diabetes.
B.
The SNP codes for a faulty protein that causes the individual to have diabetes.
C.
To identify the SNP in more individuals, they will need to have their genome sequenced.
D.
The SNP may be linked to a gene that contributes to diabetes.
What potential problems must be considered in creating a transgenic bacterium with the human insulin gene isolated from genomic DNA to produce insulin?
a. The genetic code of bacteria is significantly different from the genetic code of humans.
b. The bacterial cell will be unable to posttranslationally process the insulin peptide sequence.
c. There is no way to get the bacterium to transcribe high levels of a human gene.
d. Both a and b present problems.
Genetically modified foods are products produced from organisms that have had changes
introduced into their DNA using the methods of genetic engineering. Golden rice, Flavr Savr
tomatoes and Roundup Ready soyabeans are products of this technology. Discuss the
advantages of these three genetically modified crops. Name ONE (1) strategy to produce
transformed plant cells.
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WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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- Which letter is correct A. Genetic engineering is preferred because a desired gene to crops may not exist in their species, so conventional agriculture could not be applied. B. Conventional agriculture is preferred because they're natural, and don't have interference in their genome, so they're healthier. C. Genetic engineering is preferred because through it, we can create new species of plants resistant to pests. D. Conventional agriculture is preferred because they produce more crop compared to genetic modifications.arrow_forwardthis is an example of biotechnology: In order to increase the yield of oil from canola, research focused on ways to reduce competition from competitor weed plants. Weeds can be controlled by spraying with a herbicide that interferes with biological processes, like amino acid anabolic reactions, in the plant cells. A mutant of canola that is resistant to herbicides is sometimes grown in fields that are sprayed with the herbicide. The majority of canola in Canada, though, is genetically modified to be resistant to herbicides. also use the link: https://youtu.be/VS3kcwgIwm0 Question: Evaluating Biotechnologies in Food Systems As we practice being able to describe choices in Biology you will use this consolidation task to organize details about the advantages and disadvantages of biotechnologies. In an ideal world, all solutions to improving our food system would have no negative consequences. But issues in Biology involve the interaction of many different factors and changes in one…arrow_forwardWhat are the advantages of real-time PCR over microscopy for diagnosing malaria? a. Giemsa stain is not required for real-time PCR b. It allows for species identification and quantification of malaria-causing plasmodium at lower blood concentration with greater sensitivity and specificity. c. Real-time PCR doesn't require the use of a microscope which is deemed too expensive. d. Real-time PCR has a hiher sensitivity for the main malaria-causing plasmodium, P. falciparum, than microscopy techniques. Thank you!!!arrow_forward
- Briefly discuss the following concerns of Biotechnology;(i) Monoclonal antibodies technology versus gene technology for cancer treatment.(ii) Traditional plant breeding versus Gene technology: Which is the more efficient way for pesticide resistant crop production?(iii) Chemical technology versus Enzyme technology in industrial application.(iv) Are genetically modified organisms (GMOs) a threat to the environment?arrow_forwardWhen bacteria are consumed by macrophages, the macrophages give off chemokines that recruit other immune cells. The chemokines serve as ligands for G-protein coupled receptors. Which of the following is NOT true of G-PCRs? a. G-PCRs require GTP to activate a G-protein b. G-PCRs bind the ligand extra-cellularly and undergo an allosteric change c. The receptor is a G-protein d. The G-protein separates into multiple parts that can activate different pathways.arrow_forwardWhich statement is true? a. There is no danger involved in recombinant DNA research in humans. b. Stringent safety rules make the use of recombinant DNA research impossible. c. There is no danger in releasing recombinant organisms into the environment. d. Stringent safety rules make the use of recombinant DNA research possible. e. There is no danger involved in recombinant DNA research in bacteria.arrow_forward
- Which of the following is true about DNA manipulation? Select the best answer. A. all of these B. DNA has never been transferred between different organisms. C. Transferring DNA from one organism into another always kills the host organism. D. Whole genomes have been manipulated by humans for centuries; now individual genes ca be inserted into different organisms using a variety of techniques. E. DNA can't be manipulated.arrow_forwardThe reason why Beadle and Tatum observed four different categories of mutants that could not grow on media without methionine is because a. the enzyme involved in methionine biosynthesis is composed of four different subunits. b. the enzyme involved in methionine biosynthesis is present in four copies in the Neurospora genome. c. four different enzymes are involved in a pathway for methionine biosynthesis. d. a lack of methionine biosynthesis can inhibit Neurospora growth in four different ways.arrow_forwardTo produce transgenic plants, plant tissue is exposed to Agrobacteriumtumefaciens and then grown in media containing kanamycin, carbenicillin, and plant growth hormones. Explain the purpose behind each of these three agents. What would happen if you left out the kanamycin?arrow_forward
- Which of the following describes an advantage of using a recombinant plasmid for DNA cloning over PCR? A. PCR is more likely to have errors introduced in the copying process. B. Recombinant DNA plasmids are able to create large amounts of copies more quickly than PCR. C. PCR can only be conducted in eukaryotic cells. D. PCR requires prior knowledge of the sequence in question, while a recombinant plasmid does not.arrow_forwardPredict the effect on the PCR reaction if any of the following circumstances arose: i) there are no primers in the reaction, i) there are no dNTPs in the reaction, iii) there is no Taq polymerase in the reaction, A PCR would not commence. B. PCR would proceed normally. C. PCR would cease after a few cycles. D. Non-specific DNA amplification will occur.arrow_forwardWhich is the BEST technique to use to answer this question? You wish to determine whether a point mutation is present in the sunscreen gene. a. Westem blot. b. Northern blot . c. Sanger DNA sequencing d. In situ hybridization. Part B. Which is the BEST technique to use to answer this question? You wish to determine where Sunshine protein is translated in a ladybug embryo. a. Immunofluorescencez b. Western blot . c. RT-PCR. d. Northern blot. e. in situ hybridization.arrow_forward
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