Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Chapter 13, Problem 19QP
Summary Introduction
To describe: The steps to find out the presence of a gene in humans that can cause the retinal degeneration by using the procedure of Southern blotting.
Introduction: A method for transferring DNA fragments from a gel to a membrane filter and screened with probes to identify a fragment of interest is called “southern blotting.”
The fragment of interest can be used in hybridization experiments.
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You obtained the sequence of the frog gene X you amplified in Question #16 through a process called automated sequencing. In automated sequencing, you are given a printout of the sense strand of your DNA. The printout is shown below. The first thing you need to do is use the correct reading frame. Having done this, the next thing to do is to write out the mRNA sequence using this sense strand reading frame. The last thing to do is to translate the sequence. Do these steps in the space below.
The reading frame DNA sequence is:
2.The mRNA sequence is:
The polypeptide sequence is:
Chapter 13 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 13.5 - Do you think the way this issue was handled should...Ch. 13.5 - Prob. 2EGCh. 13.7 - If you were offered the chance to have the genome...Ch. 13.7 - Prob. 2EGCh. 13 - Improving the nutritional value of food has long...Ch. 13 - Improving the nutritional value of food has long...Ch. 13 - Prob. 3CSCh. 13 - What Are Clones? Cloning is a general term used...Ch. 13 - Prob. 2QPCh. 13 - Prob. 3QP
Ch. 13 - Prob. 4QPCh. 13 - Prob. 5QPCh. 13 - Prob. 6QPCh. 13 - Cloning Genes Is a Multistep Process The following...Ch. 13 - Prob. 8QPCh. 13 - Prob. 9QPCh. 13 - Cloning Genes Is a Multistep Process Which enzyme...Ch. 13 - Cloning Genes Is a Multistep Process In cloning...Ch. 13 - Prob. 12QPCh. 13 - Prob. 13QPCh. 13 - Prob. 14QPCh. 13 - Prob. 15QPCh. 13 - Cloned Libraries You are running a PCR to generate...Ch. 13 - Prob. 17QPCh. 13 - Prob. 18QPCh. 13 - Prob. 19QPCh. 13 - Analyzing Cloned Sequences A base change (A to T)...Ch. 13 - Prob. 21QPCh. 13 - Analyzing Cloned Sequences What kind of...Ch. 13 - Prob. 23QP
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- Analyzing Cloned Sequences What kind of information can a DNA sequence provide to a researcher studying a disease-causing gene?arrow_forwardSuppose you have been directed to find new enzymes to use in the breakdown of wood in order to process biofuel (switchgrass, for example). Suppose you wanted to use fungal or bacterial DNA from the environment in order to do so. DNA can be unwound from the double stranded double helix into single strands, amplified, separated on gels by size, stained with dyes. It can be mutated by a variety of means. It can be sequenced. Describe one or more of the ways that you might manipulate DNA towards the stated goal. Relate the technology you plan to utilize to the structure of DNA. (You can break this into multiple posts, as multiple procedures might be used).arrow_forwardCloning Genes Is a Multistep Process In cloning human DNA, why is it necessary to insert the DNA into a vector such as a bacterial plasmid?arrow_forward
- Cloning Genes Is a Multistep Process The following DNA sequence contains a six-base sequence that is a recognition and cutting site for a restriction enzyme. What is this sequence? Which enzyme will cut this sequence? (See Figure 13.5 for help.) 5 CCGAGGAAGCTTAC 3 3 GGCTCCTTCGAATG 5arrow_forwardGenetically Modified Foods The creation of transgenic crop plants using recombinant DNA methods involves the transfer of just one gene or a small number of genes to the plants, in contrast to classical breeding methods in which hundreds or even thousands of genes are transferred at once. Explain why this is true. If fewer genes are transferred during the creation of transgenic crops, why are some people afraid that they are dangerous?arrow_forwardAnalyzing Cloned Sequences A base change (A to T) is the mutational event that created the mutant sickle cell anemia allele of beta globin. This mutation destroys an MstII restriction site normally present in the beta globin gene. This difference between the normal allele and the mutant allele can be detected with Southern blotting. Using a labeled beta globin gene as a probe, what differences would you expect to see for a Southern blot of the normal beta globin gene and the mutant sickle cell gene?arrow_forward
- You learned in the chapter that an STR locus is a locus where alleles differ in the number of copies of a short, tandemly repeated DNA sequence. PCR is used to determine the number of alleles present, as shown by the size of the DNA fragment amplified. In the Figure below are the results of PCR analysis for STR alleles at a locus where the repeat unit length is 9 bp, and alleles are known that have 5 to 11 copies of the repeat. Given the STR alleles present in the adults, state whether each of the four juveniles could or could not be an off-spring of those two adults. Explain your answers.arrow_forwardFigure 17.7 You are working in a molecular biology lab and, unbeknownst to you, your lab partner left the foreign genomic DNA that you are planning to clone on the lab bench overnight instead of storing it in the freezer. As a result, it was degraded by nucleases, but still used in the experiment. The plasmid, on the other hand, is fine. What results would you expect from your molecular cloning experiment? There will be no colonies on the bacterial plate. There will be blue colonies only. There will be blue and white colonies. The will be white colonies only.arrow_forwardWhich of the following best describes the process of DNA sequencing? a. DNA is separated on a gel, and the different bands are labeled with fluorescent nucleotides and scanned with a laser. b. A laser is used to fluorescently label the nucleotides present within the DNA, the DNA is run on a gel, and then the DNA is broken into fragments. c. Nucleotides are scanned with a laser and incorporated into the DNA that has been separated on a gel, and then the DNA is amplified with PCR. d. Fragments of DNA are produced in a reaction that labels them with any of four different fluorescent dyes, and the fragments then are run on a gel and scanned with a laser. e. DNA is broken down into its constituent nucleotides, and the nucleotides are then run on a gel and purified with a laser.arrow_forward
- You have sequenced the genome of a new E. coli strain that you discovered during the metagenomics experiment in the BIOL 123 lab. You noticed that two protein coding genes – Santa and Grinch - are arranged on the chromosome as shown in the map below. The direction of transcription for each gene is indicated by the arrows. Which DNA strand represents the coding strand for each gene? a. Bottom strand for Santa, top strand for Grinch b. Top stand is coding for both genes c. Bottom strand is coding for both genes d. Top strand for Santa, bottom strand for Grincharrow_forwardYou obtained the sequence of the frog gene X you amplified in Question #16 through a process called automated sequencing. In automated sequencing, you are given a printout of the sense strand of your DNA. T he printout is shown below. ' The first thing you need to do is use the correct reading frame. Having done this, the next thing to do is to write out the mRNA sequence using this sense strand reading frame. The last thing to do is to translate the sequence. The reading frame DNA sequence is: The mRNA sequence is: The polypeptide sequence is: A disease in frogs which causes their tongue to fall out of their mouths is killing the frog population in LA County. You obtain a dead frog and isolate its gene Xf. When you sequence this mutated gene, you find that the last ‘G’ at the end of the first line of this sequence has been deleted (i.e. the G at position 86). In order to determine how this mutation changes the resulting polypeptide, write the mutated polypeptide sequence in the…arrow_forwardIn next-generation sequencing, which of these advances allows for massively parallel sequencing? a. Pieces of DNA are fixed to a surface, so we can tell which new nucleotides were added to each piece. b. DNA sequences are read in real-time as nucleotides are added to each piece. c. Each segment of the genome can be pieced back together through shotgun alignment d. Single molecules of DNA can be read without the need for amplification.arrow_forward
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