Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 12, Problem 4SQ
A paleontologist has recovered a bit of organic material from the 400-year-old preserved skin of an extinct dodo. She would like to compare DNA from the sample with DNA from living birds. The most useful method for initially increasing the amount of dodo DNA available for testing is ______.
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The following shows the results of DNA profiling from a rape case. The evidence sample (S) consists of a mixture of DNA from the victim (V) and the DNA of the rapist(s). DNA is taken from four likely suspects (who were present at the same party as the victim on the night of the crime), Alan (A), Brad (B), Charle (C), and Don (D). The results of typing for two different polymorphic loci are shown.
1)Which person is homozygous for locus 1?
A. Alan
B. Brad
C. Charlie
D. Don
E. Victim
The most common procedure for cloning an animal is __________.
The following gel shows the results of a crime scene investigation. Lane 1 shows a DNA sample
that was obtained from the scene of a crime (there was evidence of the criminal cutting himself, so
it's the criminal's blood sample that produced the DNA bands in lane 1).
Lanes 2-7 shows a DNA sample from six potential suspects held in connection with the crime.
Arrange the bands labeled A, B, C, D from largest to smallest.
1 2 3 4 5 6 7
OC, A, D, B
A, B, C, D
OB, D, A, C
O D, A, C, B
Chapter 12 Solutions
Campbell Essential Biology with Physiology (6th Edition)
Ch. 12 - Suppose you wish to create a large batch of the...Ch. 12 - A carrier that moves DNA from one cell to another,...Ch. 12 - In making recombinant DNA, what is the benefit of...Ch. 12 - A paleontologist has recovered a bit of organic...Ch. 12 - Why do DNA fragments containing STR sites from...Ch. 12 - Prob. 6SQCh. 12 - Prob. 7SQCh. 12 - Name the steps of the whole-genome shotgun method.Ch. 12 - Prob. 9SQCh. 12 - Prob. 10IMT
Ch. 12 - Prob. 11IMTCh. 12 - Prob. 12IMTCh. 12 - Some scientists once joked that when the DNA...Ch. 12 - Prob. 14PSCh. 12 - Listed below are 4 of the 13 genome sites used to...Ch. 12 - In the not-too-distant future, gene therapy may be...Ch. 12 - Today, it is fairly easy to make transgenic plants...Ch. 12 - Prob. 18BSCh. 12 - Prob. 19BS
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- Can you please check my answer and make sure it is correct. Question: How can DNA evidence be used to convict or exonerate a defendant? Why is DNA evidence so powerful? Answer: DNA evidence can be used to perform DNA profiling to determine the genotype of the specific DNA sample. With just a small amount of DNA, PCR can produce billions of copies of that specific segment. The segments that are used are from non-coding regions that contain STR’s or short tandem repeats. These very short DNA sequences are repeated and are specific to individuals because we inherit them from our mother and father. Gel electrophoresis separates the PCR products based on their size and each band is compared to the allele ladder. This process helps to identify the alleles present in the original samples. DNA profiling is performed at many loci to be able to tell the genetic difference between different individuals with a lot of certainty. The DNA from the different suspects is compared to the allele…arrow_forwardDNA ________ Depends on Differences in Length of Simple-Sequence DNAs.arrow_forwardWhy do you need to put the reagents in the reaction tubes into the tubes in a specific order for DNA fingerprint analysis? Explain what the order , and why it was necessary.arrow_forward
- Positional cloning identifies DNA______________s that arelinked to disease genes.arrow_forwardHershey and Chase were able to see whether the backteriophage moved genetic material because they used _____________ labels to attach to sulfur and phosphorus.arrow_forwardBelow is an image of the results of a gel electrophoresis experiment. Lanes 1-4 contain amplified DNA fragments and Lane 5 contains the DNA size marker (DSM). From this image and by only using Lanes 1- 4 which lane matches each description below? a) This lane contains the largest DNA fragment: b) This lane contains the smallest DNA fragment: c) This lane contains a 2.5 kbp DNA fragment: 42 | || ||| | || 12 kb 9.5 kb 6.5 kb 4 kb 2 kb ***arrow_forward
- A body was found in an apartment in a downtown San Diego high-rise. To solve this murder, forensic scientists were brought in to analyze any evidence that might be found. The victim of the crime had only one piece of evidence on it: a bite mark. Crime scene techs recovered a small amount of saliva from this bite mark and, using DNA fingerprinting RFLP analysis, compared the DNA from this saliva to the DNA from 4 potential suspects, all who looked pretty guilty. The results of this analysis are shown below: Key: Victim (V) - A chihuahua Bite mark DNA (B) - from the suspect! Suspect 1 (S1) - A dachshund Suspect 2 (S2) - A pomeranian Suspect 3 (S3) - A Yorkshire terrier Suspect 4 (54) - A schnauzer Based on these results, which suspect, if any, committed this crime? (Hint: compare the DNA found on the bite mark with the DNA from the suspects. The ladder is provided as a reference point.) s2 Ladder B s1 S3 S4 S3 None of these suspects committed this crime 52 51 54arrow_forwardThere are two tubes: tube 1 and tube 2. They contain the same DNA sample but different concentration isolated from corn chips in a local restaurant. Tube 1 sample has a Ct value of 10 and tube 2 sample has a Ct value of 20. a. Which tube has a higher starting quantity, tube 1 or tube 2? b. The starting quantity in tube 1 is ________(enter a numerical number) fold (choose one: higher or lower) than that of tube 2.arrow_forwardThe photograph provided is of a 1 μg of 2-log ladder indicating the molecularsize in kilobases (Kb) and amount of DNA per band in ng. Estimate the concentration of your PCR product (amplicon) in ng/μL byvisual comparison. ____μg/μL?arrow_forward
- This question is in two parts. a. What is RFLP? Briefly describe the purpose and how it is accomplished. b. The following mother wanted to confirm to her husband that the two children were actually his genetic children. She decided to have a paternity test done. The test was performed by first collecting cheek cell samples from each children, the mother and the father in question. The researcher isolated the DNA and performed RFLP with two different probes. The results of RFLP are shown on the here Is the father genetic father for the kB kB 30 30 25 25 20 20 18 18 13 13 10 10 Probe 1 Probe 2 children? DNA Marker ||| | I Mother Father T# PINDarrow_forwardThe key portion of the autoradiograph from a single locus probe analysis of various DNA samples in a rape investigation is shown in this figure. (Please refer to the attached Picture) Samples of DNA were loaded into the following lanes: (based on the picture) known blood sample of victim known blood sample from defendant DNA size markers female fraction from vaginal swab of victim male fraction from vaginal swab of If you are the DNA analyst, you should conclude that: A. The suspect is guilty B. The suspect might be guilty, but more probes should be used. Explain your answer and Provide Conclusion.arrow_forwardsample containing at least one molecule of DNA serves as the starting material for PCR. True Falsearrow_forward
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