In this chapter we focused on how specific DNA sequences...

Question

In this chapter we focused on how specific DNA sequences can be copied, identified, characterized, and sequenced. At the same time, we found many opportunities to consider the methods and reasoning underlying these techniques. From the explanations given in the chapter, what answers would you propose to the following fundamental questions?

How has DNA-sequencing technology evolved in response to the emerging needs of genome scientists?

Accepted Answer

Hi, everyone. Let's take a look at this practice problem together which of the following statements regarding D N A sequencing technology is correct. Now, recall that D N A sequencing technology is the process of determining new clique acid sequence. So let's take a look at our options. We're going to start off with option B, it can only sequence small fragments of D N A. Now D N A sequencing technology can do both small and large fragments. So option B is not correct. Option C it is based on the principle of DNA replication. This is also not a correct. Option D N A replication is a process of making replicas of the D N A. It doesn't sequence the nucleotide order. Therefore, C is incorrect. Then we've got option D it uses PCR for the amplification of D N A. Now PCR is a process or method of increasing the total number of D N A copies. It does not sequence either. Therefore, option D is also incorrect. The correct option is a, it provides the order of nucleotides in a DNA molecule. And there are several sequencing techniques that can be used but all of them are done to determine the nucleotide order in the D N A sample. So the correct answer is a alright, everyone. I hope you found this helpful and I'll see you soon for the next practice problem.

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