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Assertion : When the DNA sequences of tw...

Assertion : When the DNA sequences of two people are cut using the same restriction enzyme, the length and number of fragments obtained are different for both.
Reason : DNA sequence is arranged tandemly in many copy numbers which varies from chromosome to chromosome in an individual, showing high degree of polymorphism.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

if both assertion and reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the assertion and reason provided, we will analyze both statements step by step. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that when the DNA sequences of two individuals are cut using the same restriction enzyme, the resulting lengths and number of fragments will differ between the two individuals. - This is true because each person's DNA sequence is unique due to genetic variation. Different sequences will have different restriction sites, leading to variations in the fragments produced. 2. **Understanding the Reason**: - The reason given is that DNA sequences are arranged in tandemly repeated units, which can vary from chromosome to chromosome in an individual, resulting in a high degree of polymorphism. - This statement is also true. Tandem repeats, such as microsatellites and minisatellites, contribute to genetic diversity among individuals. The variations in these sequences can lead to differences in how DNA is cut by restriction enzymes. 3. **Connecting Assertion and Reason**: - The assertion and reason are both correct. The reason explains why the assertion is true: the polymorphism in DNA sequences leads to differences in the number and length of fragments produced when cut by the same restriction enzyme. 4. **Conclusion**: - Since both the assertion and reason are true, and the reason provides a correct explanation for the assertion, the answer is option A: both assertion and reason are true, and the reason is the correct explanation for the assertion. ### Final Answer: **Option A: Both assertion and reason are true, and the reason is the correct explanation for the assertion.**
To solve the question regarding the assertion and reason provided, we will analyze both statements step by step. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that when the DNA sequences of two individuals are cut using the same restriction enzyme, the resulting lengths and number of fragments will differ between the two individuals. - This is true because each person's DNA sequence is unique due to genetic variation. Different sequences will have different restriction sites, leading to variations in the fragments produced. ...
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