The Question is from neet-botany molecular-basis-of-inheritance the-search-of-genetic-material, and it was created by the author Mr. NARESH KUMAR K

Question

The Hershey-Chase experiment utilized radioactive isotopes to label different components of bacteriophages. Which of the following combinations accurately reflects the isotopes used and the components they labeled?

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: [C]
## CONCEPT FRAMEWORK
	**Primary Concept**: The Hershey-Chase experiment demonstrating that DNA is the genetic material.
	**Related Topics**: Bacteriophages, isotopes in biology, molecular biology.
	**Prerequisites**: Understanding of radioactive isotopes and their applications in molecular biology.
## SOLUTION PATHWAY
**Given Information**:
		1. The experiment involved bacteriophages labeled with isotopes.
		2. Two isotopes were used: 32P and 35S.
**Method & Steps**:
	1. Identify the components of the bacteriophage.
		Reasoning: Bacteriophages consist of DNA and protein.
		Formula/Rule: DNA contains phosphorus and protein contains sulfur.
	2. Determine which isotopes label which components.
		Working: 32P labels DNA because DNA contains phosphorus; 35S labels protein because proteins often contain sulfur.
		Key Point: The combination of the isotopes must reflect the accurate labeling.
	3. Analyze the options provided.
		Result: The correct combination is 32P for DNA and 35S for protein, corresponding to option C.
		Verification: This matches the known results of the Hershey-Chase experiment where DNA was shown to be the genetic material.
## OPTION ANALYSIS
[A] :x: [Incorrect, as it states 32P for protein which is not true]
[B] :x: [Incorrect, since both DNA and protein cannot be labeled with 35S]
[C] ✓: [Correct, as it accurately states 32P for DNA and 35S for protein]
[D] :x: [Incorrect, as it claims 32P for both components which is incorrect]
## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing the isotopes: Remember that 32P is specific to DNA and 35S is specific to protein.
		2. Misunderstanding the purpose of the experiment: Focus on how the labeling helps identify the genetic material.
	**Quick Tips**:
		1. Remember the key isotopes: 32P for DNA, 35S for protein.
		2. Associate the isotopes with their components by recalling their chemical elements.

Mr. NARESH KUMAR K · Answer

32P for protein and 35S for DNA

Mr. NARESH KUMAR K · Answer

35S for both DNA and protein

Mr. NARESH KUMAR K · Answer

The correct Option is "32P for DNA and 35S for protein"

Mr. NARESH KUMAR K · Answer

32P for both DNA and protein

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