In this chapter, we first focused on the information that showed ...

Question

In this chapter, we first focused on the information that showed DNA to be the genetic material and then discussed the structure of DNA as proposed by Watson and Crick. We concluded the chapter by describing various techniques developed to study DNA. Along the way, we found many opportunities to consider the methods and reasoning by which much of this information was acquired. From the explanations given in the chapter, what answers would you propose to the following fundamental questions:

How were scientists able to determine that DNA, and not some other molecule, serves as the genetic material in bacteria and bacteriophages?

Accepted Answer

Hello everyone here we have a question asking us to determine which of the following statements is true. A viruses, bacteria and bacteriophages use R. N. A. In their genetic material. Out of these three only viruses can use RNA in their genetic material. So bacteria and bacterial phages cannot. So A. Is incorrect. Be smallpox virus, herpes virus and P. Original. So use D. N. A. Exclusively in their genetic material. This is correct. Smallpox and herpes viruses are known as D. N. A. Viruses. There are further classified as double stranded DNA viruses and P. Anissa, like all bacteria are DNA based organism. So B. Is correct. See bacteriophages are known to use RNA exclusively in their genetic material. This is incorrect bacteriophages use D. N. A. In their genetic material. They can use RNA but it is not exclusive. So we would need to take out this word exclusively. So C. Is incorrect. Which makes D incorrect. So our answer here is B. Thank you for watching. Bye.

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