Assertion :- The sequencing of chromosome-1 was completed at last in May-2006
Reason : Chromosome-1 in the longest chromsome with maximum number of genes.

Options

A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is Flase.
D. If both Assertion & Reason are false.

Answer

To solve the question regarding the assertion and reason, we will follow these steps:

### Step 1: Analyze the Assertion
The assertion states that "The sequencing of chromosome-1 was completed at last in May 2006." This is a factual statement related to the Human Genome Project, which aimed to sequence the entire human genome.

### Step 2: Verify the Assertion
The Human Genome Project began in 1990 and was completed in 2003. However, the sequencing of chromosome-1 specifically was completed later, in May 2006. This confirms that the assertion is true.

### Step 3: Analyze the Reason
The reason states that "Chromosome-1 is the longest chromosome with maximum number of genes." This statement needs to be evaluated for its truthfulness and relevance to the assertion.

### Step 4: Verify the Reason
Chromosome-1 is indeed the largest chromosome in the human genome and contains approximately 2,968 genes, making it the chromosome with the highest number of genes. Therefore, this reason is also true.

### Step 5: Determine the Relationship
Now we need to establish whether the reason correctly explains the assertion. Since the completion of the sequencing of chromosome-1 is indeed related to its status as the longest chromosome with the maximum number of genes, the reason provides a correct explanation for the assertion.

### Step 6: Conclusion
Both the assertion and the reason are true, and the reason correctly explains the assertion. Thus, the correct answer is that both statements are true and the reason is the correct explanation of the assertion.

### Final Answer:
Both the assertion and the reason are true, and the reason is the correct explanation of the assertion.

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