Hershey and Chase selected the bacteriophage T2 for thei...

Question

Hershey and Chase selected the bacteriophage T2 for their experiment assessing the role of DNA in heredity because T2 contains protein and DNA, but not RNA. Explain why T2 was a good choice for this experiment.

Accepted Answer

Hello, everyone and welcome to today's video. So to show that DNA is the hereditary material, Alfred Hershey and Martha Chase conducted experiments on the blank virus containing protein and DNA but not R N A that attacks the common bacterium as curia coli or E coli by utilizing blank components. Now, in order to solve this problem, we're going to first go over each of our answer choices so that we may keep them in mind as we explain this as answer choice A we have T two bacteria phosphorus 36 sulfur 38 as answer choice B. We have T M B phosphor 36 sulfur 38. And as answer show is C we have T two bacteria, phosphorus 32 sulfur 35. Well, remember from previous videos that Martha and Alfred were using this T two bacteria fish, which is what we're going to be inputting here. But why were they using this bacteria age? Well, as it turns out, this bacteria age contains both DNA and proteins. So they decided to test the role of DNA in here using these bacteria as they had these components. Now, moving on we have that this virus containing pro protein and DNA but no R N A attacks the common bacterium E coli by utilizing blank components. So what does they utilize? Well as it turns out, they used radioactive phosphorus to label the DNA because phosphorus is only present in DNA and not in proteins. And they also used sulfur because sulfur 35 is going to be able to label only proteins because again, it's only present in proteins and not in DNA. So these are the means that they use to label only DNA and only proteins in their experiments. Therefore, the correct answer choice here is going to be answer choice C T two bacteria, PPH phosphorus 32 sulfur 35. So if we read the problem, now it states to show that DNA is the hereditary material of Hershey and Martha. She is conducting experiments on the T two bacteria, pha virus containing protein and DNA but not R N A that attacks the common bacterium E coli by utilizing these phosphorus 32 and sulfur 35 components. I really hope this video helped you and I hope to see you on the next one.

Hershey and Chase selected the bacteriophage T2 for their experiment assessing the role of DNA in heredity because T2 contains protein and DNA, but not RNA. Explain why T2 was a good choice for this experiment.

Key Concepts

Bacteriophage

DNA vs. Protein Hypothesis

Experimental Design

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