Given your knowledge of the genetic tools for studying Drosophila...

Question

Given your knowledge of the genetic tools for studying Drosophila, outline a method by which you could clone the dunce and rutabaga genes identified by Seymour Benzer's laboratory in the genetic screen described at the beginning of this chapter.

Accepted Answer

Everyone. Let's take a look at this question together. Which of the following genetic engineering techniques can be used to customize an organism's genetic sequence by implementing specific alterations to its DNA. Is it answer choice? A CRISPR Cas nine answer choice B polymerase chain reaction. Answer choice C recombinant DNA technology or answer choice D gel electrophoresis. Let's work this problem out together to try to figure out which of the following techniques can be used to customize an organism's genetic sequence by altering its DNA. So since we are talking about a genetic engineering technique that involves implementing specific alterations to its DNA, we can go ahead and remove answer choice B as well as answer choice D. Since we note that polymerase chain reaction is a method of amplifying a DNA sequence and does not involve making specific alterations to the DNA sequence. And answer choice D gel electrophoresis is a method that is used to separate a DNA fragment based on the size and charge of that DNA fragment. So we are left with CRISPR cas nine and recombinant DNA technology. And since we are talking about a technique that can be used to customize or edit an organism's genetic sequence or its genome. By implementing those specific alterations to its DNA. We are looking for a genetic engineering technique that is used to make specific edits to the genome, which we know that answer choice. A CRISPR cas nine is that genetic engineering technique since it is a gene editing tool that allows scientists to customize an organism's genetic sequence by modifying or altering its DNA. And we know that answer choice C recombinant DNA technology is incorrect since it is a tool that is used to combine DNA from different sources and not make those specific edits to the genome of an organism. So answer choice. A CRISPR cast nine is the correct answer. I hope you found this video to be helpful. Thank you and goodbye.

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Given your knowledge of the genetic tools for studying Drosophila, outline a method by which you could clone the dunce and rutabaga genes identified by Seymour Benzer's laboratory in the genetic screen described at the beginning of this chapter.