Biological Science, Books a la Carte Plus Mastering Biology with Pearson eText -- Access Card Package (6th Edition)
6th Edition
ISBN: 9780134296029
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 20, Problem 9TYPSS
Revolutionaries executed Nicholas II, the last czar of Russia, along with his wife and five children, the family physician, and about a dozen servants. Many decades later, a grave purported to hold the remains of the royal family was discovered. Biologists were asked to analyze DNA from the bodies. If the remains of the family were in this grave, predict how similar the DNA fingerprints would be between the parents, the children, and the unrelated individuals in the grave.
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Mr. I. M. Megabucks, the wealthiest man in the world, recently died. Since his death, three women have come forward. Each woman claims to have a child by Megabucks and demands a substantial share of his estate for her child. Lawyers for the estate have insisted on DNA typing of each of the alleged heirs. Fortunately, Megabucks anticipated trouble like this before he died, and he arranged to have a sample of his blood frozen for DNA typing. The results of the typing are shown in the figure below. Your job is to analyze the data and determine whether any of the children could be Megabucks' heir. Remember that every person has two of each chromosome, one inherited from his mother and one inherited from his father. Half of every person's DNA comes from his mother, and half comes from his father, so some of the DNA bands showing in the children will come from their mothers, and the rest will come from their fathers. The question is, could that father be Megabucks?Â
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Chapter 20 Solutions
Biological Science, Books a la Carte Plus Mastering Biology with Pearson eText -- Access Card Package (6th Edition)
Ch. 20 - Prob. 1TYKCh. 20 - What is a plasmid? a. an organelle found in many...Ch. 20 - 3. Once the gene that causes Huntington disease...Ch. 20 - CAUTION The human genome size is 3 billion base...Ch. 20 - Prob. 5TYUCh. 20 - Prob. 6TYUCh. 20 - Prob. 7TYUCh. 20 - Prob. 8TYUCh. 20 - 9. Revolutionaries executed Nicholas II, the last...Ch. 20 - Prob. 10TYPSS
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- 1 2 Today's technology has made it easier to quickly and accurately generate DNA profiles. In this part of the activity, you will model the process yourself to solve a crime. Good luck, detective! Crime Report: A thief has stolen a priceless collection of jewels from the Museum of Precious Jewels. Forensic technicians obtained skin cells from a forehead print left on the glass enclosure of the jewel exhibit. DNA has been isolated and PCR amplified for some of the standard STR loci. A partial genetic profile generated from the collected DNA is shown in Figure 5. 10 50 DNA Profile from Forehead Print Number of base pairs 00 50 40 D58818 075830 I 16 MU DES1179 Shandand (10) 70 CSF1PO DITS820 80 100 Figure 5. The DNA profile of the forehead print from the scene of the crime. Each colored line shows the alleles for one of four of the core CODIS STR loci (D5S818, CSF1PO, D7S820, D8S1179). and data for the four STR loci that were included in the A suspect was identified in the case. Her DNA…arrow_forwardWhen forensic experts work with a blood sample, what part of it do they use for PCR; red blood cells, white blood cells, or proteinaceous antibodies? If trying to find a tandem repeat segment, why would you pick one choice other another?arrow_forwardIn typing DNA from a sample found at a crime scene, how can a DNA mismatch prove that a suspect is not the source of that sample,whereas a DNA match does not necessarily prove that a suspect is the source?arrow_forward
- Many times a forensic scientist has only a single hair or a single drop of blood for analysis. The amount of DNA in this kind of material is very tiny, and is not enough to use for comparison. In other words, running a single experiment to compare the DNA in a drop of blood with several suspects would use up all of the DNA in that drop of blood. This could be a serious problem if none of the suspects provided a match. How would a forensic scientist increase the amount of DNA available to them, starting with the DNA that would be found in their crime scene sample, such as a drop of blood from a suspect? PCR RFLPS Gel electrophoresis STRSarrow_forwardIn general, which part of a DNA sequence will have the best quality? (Ex. Beginning, middle, end?) Why?arrow_forwardIn 1979, bones found outside Ekaterinburg, Russia, were shown to be those of Tsar Nicholas and his family, who were executed in 1918 by a Bolshevik firing squad in the Russian Revolution . To prove that the skeletons were those of the royal family, mtDNA was extracted from the bone samples, amplified by PCR, and compared with mtDNA from living relatives of the tsar’s family. Q. Mitochondrial DNA from which living relatives would provide useful information for verifying that the skeletons were those of the royal family?arrow_forward
- Which of the following pairs of sequences would be considered different alleles in DNA profiling? Â a) ATGAATTCGG;Â ATGAAATCGG b) ATGAATTCGG; TACTTACTTACT c) GAAGAAGAA; GAAGAAGAAGAA d) AATAATAATAAT; AATTAATTAATTarrow_forwardThe illumina method of sequencing uses a unique type of nucleotide building block. What is the specific characteristic of this type of nucleotide that is important for this method of sequencing? How is the sequence of a fragment of DNA determined using this method? (USE THIS LINK AND WRITE ANSWERS IN YOUR LANGUAGE PLEASE DON'T COPY SAME AS GIVEN IN SITE https://www.mybiosource.com/learn/testing-procedures/dna-sequencing/arrow_forwardWhat is meant by the term DNA fingerprinting?arrow_forward
- With regard to Chargaff’s experiment described in Figure shown,answer the following:A. What is the purpose of paper chromatography?B. Explain why it is necessary to remove the bases in order todetermine the base composition of DNA.C. Would Chargaff’s experiments have been convincing if theyhad been done on DNA from only one species? Discuss.arrow_forwardWhich of the following statements concerning recombinantDNA technology is false?(a) Thus far, no illnesses in laboratory workers have beentraced to genetic recombinants.(b) Production of large amounts of proteins such as insulinand human growth hormone has been made possible us-ing recombinant DNA technology.(c) Recombinant DNA technology offers specific benefitsto the scientific, medical, and general populations.(d) Mutant strains of bacteria produced by genetic re-combination are often unable to survive in the naturalenvironment.(e) Recombinant DNA technology provides a high degreeof risk to the health of the general populations.arrow_forward1. These gels represent different cases. Do either of these gels eliminate the alleged father from being the real father? Do either of these gels prove the alleged father is the real father? 0 ITE Crime Scene aaaava ... ... ... .. yaaava ... 000 0.. ..... 2. You isolate DNA from a crime scene and a suspect and then analyze a variable region by PCR and gel electrophoresis. Your results look like this Suspect From this you conclude A. The suspect committed the crime B. The suspect was at the crime scene C. The suspect could not have been at the crime scene D. The suspect did not commit the crime E. The suspect could have been at the crime scene, but more genes must be examinedarrow_forward
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