NEET Botany Cell Theory MCQ Question
Considering the approximate length of DNA in a single human cell is 2 meters, what is the total length of DNA in all 46 chromosomes of a human somatic cell in micrometers?
2,000,000 micrometers
200,000 micrometers
20,000 micrometers
200,000,000 micrometers
Correct Answer
Detailed Explanation
The NCERT states that a single human cell has approximately 2 meters of DNA. Since 1 meter equals 1,000,000 micrometers, 2 meters would be 2,000,000 micrometers. This length of DNA is distributed among 46 chromosomes in a human somatic cell.
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