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Ch. 20 - Recombinant DNA Technology

Chapter 19, Problem 8

Might it make sense someday to sequence every newborn's genome at the time of birth? What are the potential advantages and concerns of this approach?

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Hey, everyone. Let's take a look at this question together which of the following statements is false about the difference between manual and automated DNA sequencing. So let's recall what we know about manual and automated DNA sequencing to compare them to figure out which of the following statements is false. So we know that when we're talking about automated D N A sequencing, it is faster, more accurate. It uses automated instruments to sequence D N A and it uses fluorescent die as a way to mark the nucleotides. And when we're talking about manual sequencing, we know that it is slower and can have errors as well as it utilizes manual labor. And these are all in relation to that automated DNA sequencing method. And so looking at our answer choices, let's try to figure out which of the following statements is false. The answer choice A says that automated DNA sequencing is faster and more accurate than manual DNA sequencing, which we know it is faster and more accurate. So answer choice is a true statement. Answer choice B says automated DNA sequencing uses automated instruments to sequence the DNA while manual DNA sequencing is done manually which we note that manual uses manual labor and automated, uses automated instruments. So answer choice B is also a true statement and then answer choice C. This automated DNA sequencing uses a radioactive isotope to mark the nucleotides. While manual D N A sequencing uses a fluorescent dye which we know is a false statement because that automated DNA sequencing method uses the fluorescent dye to mark nucleotides. So answer choice C is a false statement and is the correct answer to this question. I hope you found this video to be helpful. Thank you and goodbye.
Related Practice
Textbook Question

Using DNA sequencing on a cloned DNA segment, you recover the nucleotide sequence shown below. Does this segment contain a palindromic recognition sequence for a restriction enzyme? If so, what is the double-stranded sequence of the palindrome, and what enzyme would cut at this sequence? (Consult Figure 20.1 for a list of restriction sites.)

CAGTATGGATCCCAT

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Textbook Question

As genetic testing becomes widespread, medical records will contain the results of such testing. Who should have access to this information? Should employers, potential employers, or insurance companies be allowed to have this information? Would you favor or oppose having the government establish and maintain a central database containing the results of individuals' genome scans?

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Textbook Question

Restriction sites are palindromic; that is, they read the same in the 5' to 3' direction on each strand of DNA. What is the advantage of having restriction sites organized this way?

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Textbook Question

List the advantages and disadvantages of using plasmids as cloning vectors. What advantages do BACs and YACs provide over plasmids as cloning vectors?

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Textbook Question

Which of the examples of genetic testing below are prognostic tests? Which are diagnostic?

Genetic testing in a healthy teenager identifies an SNP correlated with autism.

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Textbook Question

Which of the examples of genetic testing below are prognostic tests? Which are diagnostic?

An adult diagnosed with Asperger syndrome (AS) has a genetic test that reveals a SNP in the GABRB3 gene that is significantly more common in people with AS than the general population.

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