The Question is from neet-botany molecular-basis-of-inheritance , and it was created by the author NISHANTH

Question

In their side by side experiments Hershy and chase incorporated ${}^{35}S$ into?

NISHANTH · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
	**Primary Concept**: Hershey-Chase experiment and radioactive labeling
	**Related Topics**: Bacteriophages, DNA and proteins as genetic material, isotopes
	**Prerequisites**: Basic understanding of the Hershey-Chase experiment and the structure of bacteriophages
## SOLUTION PATHWAY
**Given Information**:
	The question asks where 35S was incorporated in the Hershey-Chase experiment
**Method & Steps**:
	1. Recall that the Hershey-Chase experiment used radioactive isotopes to label either the protein or DNA of bacteriophages.
		Reasoning: The experiment aimed to determine which molecule (DNA or protein) carries genetic information.
	2. Recall that sulfur is present in proteins but not in DNA.
		Reasoning: This allows for the specific labeling of proteins.
	3. Conclude that 35S was used to label the protein capsid of the phage.
		Result:  The correct answer is the protein capsid.
 ## OPTION ANALYSIS
[A] :x: Bacterial DNA contains phosphorus, not sulfur.
[B] ✓: Protein contains sulfur, so 35S would be incorporated here.
[C] :x: Bacterial cytoplasm contains both protein and DNA, but the question is specific to the phage, and the labeling is not specific to the cytoplasm.
[D] :x: Phage DNA contains phosphorus, not sulfur.
 ## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing the elements in DNA and protein: Remember that DNA contains phosphorus and protein contains sulfur.
	**Quick Tips**:
		1. Visualize the Hershey-Chase experiment to recall the labeling strategy.

NISHANTH · Answer

Bacterial DNA

NISHANTH · Answer

The correct Option is "Protein Capsid of Phage"

NISHANTH · Answer

Cytoplasm of bacteria

NISHANTH · Answer

Phage DNA

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