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A : SNPs- pronounced ''snips '' are com...

A : SNPs- pronounced ''snips '' are common in human genome.
R : It is minute variations that occurs at a frequency of one in every 300 bases.

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark

B

If both Assertion & Reason are true and the reason is not the correct explanation of the assertion , then mark

C

If Assertion is ture statement but Reason is false, then mark.

D

If both Assertion and Reason are false statements, then mark.

Text Solution

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The correct Answer is:
To solve the assertion and reason question regarding SNPs (Single Nucleotide Polymorphisms), we will analyze both statements step by step. ### Step 1: Analyze the Assertion (A) **Assertion (A):** SNPs are common in the human genome. - **Explanation:** SNPs, or Single Nucleotide Polymorphisms, are indeed variations that occur at a single nucleotide position in the genome. However, the assertion states that they are "common in the human genome." This is somewhat misleading. While SNPs are prevalent in the human population, they are more accurately described as common genetic variations among individuals rather than being common specifically in the human genome as a whole. **Conclusion for Assertion:** The assertion is **false** because it misrepresents the context of SNPs. ### Step 2: Analyze the Reason (R) **Reason (R):** It is minute variations that occur at a frequency of one in every 300 bases. - **Explanation:** The reason states that SNPs are minute variations occurring at a frequency of one in every 300 bases. However, the correct frequency for SNPs is approximately one in every 1,000 bases, not 300. Therefore, this statement is also incorrect. **Conclusion for Reason:** The reason is **false** because it provides an incorrect frequency for SNPs. ### Step 3: Determine the Relationship Between Assertion and Reason - Since both the assertion and the reason are false, we need to evaluate the options provided in the question. ### Step 4: Evaluate the Options - **Option A:** Both assertion and reason are true, and reason is the correct explanation of assertion. (False) - **Option B:** Both assertion and reason are true, but reason is not the correct explanation of assertion. (False) - **Option C:** Assertion is true, reason is false. (False) - **Option D:** Both assertion and reason are false. (True) **Final Conclusion:** The correct answer is **Option D**, as both the assertion and the reason are false. ---
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