Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 18.5, Problem 1HYEW
Scientists have cloned a number of animal species, including mice, dogs, cats, horses, and cows. Could the technology of cloning be used to bring back extinct species? In principle, yes, provided that perfectly preserved DNA of the extinct species is available. Such DNA could be transferred to an egg from a closely related, living species, and the egg implanted in a surrogate mother of that species.
For example, researchers have suggested that it might be possible to clone a woolly mammoth, using an elephant surrogate mother and DNA extracted from 20,000-year-old mammoths found frozen beneath the Siberian tundra.
Most scientists, however, believe that any DNA recovered from a fossil mammoth would be far too degraded for use in cloning, and synthesizing an entire mammoth genome (its sequence is now almost fully known) is beyond the capabilities of current technology. The odds of success might be greater for another proposed project, which would use DNA from a preserved museum specimen to revive the Tasmanian tiger, an Australian mammal that has been extinct for only 70 years. If cloning recently extinct species proves to be possible, do you think it would be a good idea?
If Extinct Species Can Be Revived by Cloning?
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a) Write a short description of why someone would choose to write about wolves vs. dogs. Make an argument for why this topic is interesting.
b) Write a short description of why someone would choose this paper below of comparative analysis of the blood transcriptomes between wolves. How does this paper relate to wolves vs. dogs?
c) How can you tell that this is a primary research paper and not a review article?
Research has now demonstrated that techniques that have been developed for cloning animals could be used to clone human embryos, although no living human clones have been produced. There is widespread consensus that cloning a live human would be unethical. However, some people have suggested creating cloned embryos from which stem or pluripotent cells, which have the ability to develop into any tissue or organ, could be extracted. The stem and pluripotent cells might then be used to create genetically identical tissues and organs that could then be transplanted back into the donor to treat failed organs and diseases. What might be some reasons for or against this type of therapeutic cloning?
Dolly 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…
Chapter 18 Solutions
Biology
Ch. 18.1 - How Would the experiments result charge if oxygen...Ch. 18.1 - describe a likely scenario for the origin of life?Ch. 18.1 - describe, for each step in the scenario, some...Ch. 18.2 - Uranium-235, with a half-life of 713 million...Ch. 18.2 - Scientists have identified a free living bacterium...Ch. 18.2 - describe scenarios for the major evolutionary...Ch. 18.2 - State the order in which these events occurred,...Ch. 18.3 - describe fossil evidence of the earliest...Ch. 18.3 - describe the advantages that fostered the origin...Ch. 18.3 - Prob. 3CYL
Ch. 18.4 - Prob. 1TCCh. 18.4 - Does the mudskippers ability to walk on land...Ch. 18.4 - Can ancient DNA reveal the secrets of dinosaur...Ch. 18.4 - Although it may never be possible to recover DNA...Ch. 18.4 - describe the transitions and innovations...Ch. 18.4 - describe the advantages gained by the first plants...Ch. 18.5 - Scientists have cloned a number of animal species,...Ch. 18.5 - explain how extinction has affected the course of...Ch. 18.5 - describe the likely causes of mass extinctions in...Ch. 18.6 - We might be able to more easily distinguish...Ch. 18.6 - Paleontologists recently discovered fossil...Ch. 18.6 - describe the evolutionary history of humans and...Ch. 18.6 - name and describe some characteristics of the...Ch. 18.6 - describe the key features of the most recent phase...Ch. 18.6 - The unexpected discovery that humans interbred...Ch. 18 - Almost all of the oxygen gas in todays atmosphere...Ch. 18 - Extinction a. generally does not occur except...Ch. 18 - In the endosymbiotic origin of the mitochondrion,...Ch. 18 - Which of the following does not list evolutionary...Ch. 18 - Prob. 5MCCh. 18 - Because there was no oxygen in the earliest...Ch. 18 - The molecule _________ became a candidate for the...Ch. 18 - Complex cells that contain a nucleus and other...Ch. 18 - The Sperm of early land plants had to reach the...Ch. 18 - Prob. 5FIBCh. 18 - Prob. 6FIBCh. 18 - Prob. 7FIBCh. 18 - What is the evidence that life might have...Ch. 18 - How did the origin of photosynthesis affect...Ch. 18 - Explain the endosymbiont hypothesis for the origin...Ch. 18 - Name two advantages of multicellularity for plants...Ch. 18 - What advantages and disadvantages would...Ch. 18 - Prob. 6RQCh. 18 - Prob. 7RQCh. 18 - Extinctions have occurred throughout the history...Ch. 18 - In biological terms, what do you think was the...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The following diagram outlines how the process of cloning a sheep was accomplished. Cloning is the process of creating a genetically identical copy of another individual. With Dolly, the first cloned mammal, an egg cell was removed from a donor (B) and the nucleus was removed from the egg cell. Then cells from a sheep's mammary gland were removed from a second donor (A). The nucleus of one of the cells from the mammary gland was fused with the enucleated egg cell using an electrical pulse. The fused cell underwent cell division and at the blastocyst stage was implanted into a surrogate mother sheep. The percentage of genetic material that Dolly (the clone) had in common with Donor A is Select one: a. 25% b. 50% c. 100% d. 0%arrow_forwardWooly Mammoths have been extinct for about 10,000 years; however, their remains have been well persevered in Siberia. Due to global warming, these remains are now available to be recovered. Scientists want to extract the DNA and through cloning insert the DNA into an elephant to clone the mammoth. What are some of the pros and cons of cloning an extinct animal?arrow_forwardhttps://www.khanacademy.org/science/biology/biotech-dna-technology/dna-cloning-tutorial/a/overview-dna-cloning That is the link for the example ^arrow_forward
- You just graduated from college and started working at a biotech startup called Scrofabulous. Your first job assignment is to clone the pig gene for the hormone prolactin. Assume that the pig gene for prolactin has not yet been isolated, sequenced, or mapped; What would be the most useful and economical first step to go about identifying and cloning the pig gene for prolactin? use the amino acid sequence of mouse prolactin to design a pair of degenerate oligonucleotide PCR primers to PCR-amplify the pig prolactin gene. RNAseq the pituitary gland of the pig, the most abundant gene is likely to to be prolactin Conduct a proteome search for peptides that match parts of mouse prolactin protein Sequence the pig genome, then translate the genome to find the gene predicted to encode for prolactin Crystalize the mouse prolactin protein and use Google's DeepMind Al to find the closest amino acid sequence in the pig proteomearrow_forwardNow that cloning is possible, should it be used to clone animals that are near extinction? What are the possible ramifications of this when it comes to genetic diversity and size of the gene pool?arrow_forwardThere are a range of ethical issues associated with cloning. However, many of these are not applied to cloning plants. Explain why the idea of cloning an entire plant is generally accepted while cloning an entire human is not.arrow_forward
- Q1) What is similar between molecular cloning and PCR?Q2) What is different from molecular cloning and PCR? Q3) What ‘horizontal gene transfer’ technique is utilized most often in cloning? (conjugation, transformation or transduction)arrow_forwardWhy is genetic imprinting is a major obstacle to the successful cloning of animals?arrow_forwardWhat are some of the technical challenges of cloning a mammoth? Check all that are true Ancient mammoth DNA has degraded so it is hard to know the complete genome sequence Mammoth gestation time is likely too short to allowing cloning A living surrogate mother would have to be used, which could pose problems since the closest relative to mammoths is endangered elephants A living oocyte would have to be obtained from an extant species, which could pose problems since the closest relative to mammoths is endangered elephants Mammoths lived so long ago that they used a different genetic code than modern animals There are no enzymes in existence that could ligate together mammoth DNA sequence with elephant sequence Mammoths probably had egg shells, which would be hard to penetrate with a needlearrow_forward
- In 1995, Hamilton Smith, Craig Venter and co-workers published the first complete genome sequence of a self-sustaining organism, that of the bacterium Haemophilus influenzae. Analysis of the genome sequence revealed that the organism does not have a gene that could encode a telomerase enzyme. What is the potential evolutionary consequence of this? Explain your answer.arrow_forwardAlthough a number of different animals have been successfully cloned, the process of creating cloned animals is very inefficient. Typically, only about 0.1% to 3% of attempts result in a live-born animal. What might be some of the reasons for this low rate of success?arrow_forwardGive typing answer with explanation and conclusion If you want to identify genes linked to autism in a mouse model, which genetic approach or approaches could you use? (Mark all that apply) A) Reverse Genetics B) Forward Genetics C) Optogenetics D) Population Geneticsarrow_forward
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