WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 7, Problem 10MC
Summary Introduction
Introduction:
STRs are regions of DNA where a short sequence of
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Site-directed mutagenesis can be used to:
a.
treat diseases by gene therapy.
b.
make single residue mutation of a protein.
c.
make human insulin for treatment of diabetes.
d.
determine protein structures.
e.
determine DNA sequencing
It has been suggested that it would make the study of human diseases easier if cloned transgenic animals
were produced that carried faulty versions of human genes (e.g., the gene that causes cystic fibrosis).
a. Why would such animals be useful in medical research? :
b. What ethical questions are raised by the creation of such transgenic animals?
a. Discuss the genetic potential of the cloning of single genes, cells, organs, and entire
organisms. Distinguish between plants and animals. Research for recent examples
or studies, if any, to support your answer. You may also add the benefits/ usefulness
of the results of those certain studies (if available).
You can follow this format.
Genetic potential of the
In plants
In animals
cloning of:
a. Single genes
b. Cells
c. Organs
d. Entire organisms
Chapter 7 Solutions
WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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- 1a) Why is it possible for you to study the eye colour gene by extracting cheek cells? a. Because the nucleus of every cell in the human body contains the same genetic information. b. Because the cheek cells are located near the cells of the eye and so they are able to exchange DNA. c. Because all genes in the human body are expressed at all times so it is easy to study them. d. All of the above are possible explanations. 1b) What is the purpose of heating the sample to 75°C following addition of the 0.2M NaOH solution? a. To denature the histone proteins that are keeping the DNA tightly coiled. b. To ensure that all the DNA is removed from the swab in preparation for PCR. c. To breakdown the cheek cell membrane to release the DNA from the cell. d. It breaks down the circular DNA down into linear fragments so that they will be easier to visualize.iarrow_forwardThe goal of most gene therapies is to insert a healthy copy of a gene into the genome. Besides CRISPR, techniques for integrating DNA into the genome do not target that DNA to a particular genomic location and thus different cells end up with the DNA sequence in different positions. B. The same gene integrated into different locations in the genome will be expressed differently. Why?arrow_forwardThe goal of most gene therapies is to insert a healthy copy of a gene into the genome. Besides CRISPR, techniques for integrating DNA into the genome do not target that DNA to a particular genomic location and thus different cells end up with the DNA sequence in different positions. A. It has been shown that where the healthy gene integrates is heavily influenced by chromatin. Why? B. The same gene integrated into different locations in the genome will be expressed differently. Why? C. Over time the expression of an integrated gene will change, usually decreasing. Describe how you think the cell downregulates expression of an integrated gene.arrow_forward
- CRISPR is a powerful gene editing tool because a. the programmable enzyme (Cas9) can find an exact sequence and make a cut at precise nucleotide. b. it can be applied to all types of cells. c. it has both genetic editing and epigenetic functions. d. it is inexpensive. e. all of these are correctarrow_forwardI believe that there are many good things that can come out of people getting to design their baby’s genetic material. But there are also many bad things as well. From the article by Bio medical about the pros and cons of having a designer baby it states that a pro is that this type of engineering can “ might help prevent genetic diseases such as Alzheimer’s, Huntington’s Disease, down syndrome, Spinal Muscular Atrophy, and many others”. I think that it is great that we could get rid of Alzheimer’s due to how destructive it can be to the people that suffer it. But I think the other diseases that it can eliminate is horrible due to them making our world a more unique place such as people with autism, Down syndrome. By doing this it could eliminate the whole population of people with disabilities community and make everyone “normal”. Another bad that I found in the article Ethics of designer babies which states that a major flaw for these babies is “designer baby technologies suggest…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_forward
- In general, all mutations can be considered harmful, because most genetic systems are already optimized to work correctly and efficiently. A. True b. False; mutations are considered harmful only if they have a direct effect on the ability of cells to synthesize DNA c. False; some mutations are harmful, and some are considered beneficialarrow_forwardWhich 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 CRISPR-Cas9 system can be used to: a. sequence a genome in living cells b. edit a gene in living cells and organisms c. diagnose sickle-cell anemia d. identify a specific gene e. detect gene expression under different conditionsarrow_forward
- Genetic engineering has been used in many different ways, such as human growth hormone for the treatment of pituitary dwarfism (recombinant DNA) plants engineered to be resistant to herbicides and pests an “antifreeze” gene inserted into some Atlantic salmon and halibut pick one of the examples of genetic engineering listed above to expand on. Provide a description of the technology in terms of how it works and what steps are takenarrow_forwardDolly is the first mammal to have been successfully cloned from an adult cell Which of the following statement/s is/are most relevant to the birth of Dolly? I. It suggests that human could be cloned. II. It proves that specialized cells could be used to create an exact copy of the animal they came from. III. It improves the production of milk, meat, and other products from livestock. IV. It proves that animals could be cloned to have gene mutations that help scientists study diseases that develop in the animals. A. II only B. I and II C. III, and IV D. II, III, and IV Which of the following statements best explain the significance of mitosis and ? A. Both mitosis and meiosis produce diploid cells which responsible for the continuity of life. B. Many single-celled organisms rely on mitosis and meiosis as their primary means of asexual reproduction C. replication, cells have another interesting choice, whether they want to make an identical copy, or do they want to make four half-copies…arrow_forwardWith regard to human cancer cells, which of the following statements is true? A. Cancer cells within one tumor usually do not share common mutations B. Cancer cells generally have lost the ability to divide C. Oncogenes are non-human genes not related to normal genes in the human genome D. Mutations in DNA repair genes result in an increased chance of getting cancer.arrow_forward
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