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If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs? (NEET 2022)
- a)6.6 x 109 bp
- b)3.3 x 106 bp
- c)6.6 x 106 bp
- d)3.3 x 109 bp
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
If the length of a DNA molecule is 1.1 metres, what will be the approx...
The two chains of DNA are coiled in a right-handed helicle fashion. The pitch of the helix is 3.4 nm and has a diameter of 2 nm. In the B-form of DNA, the distance between a bp in a helix is approximately 0.34 nm which means there are about 10 nucleotides present in a complete turn.
The total length of DNA molecule in nm = 1.1 × 109 nm.
The approximate number of base pairs = 1.1 × 109/ 0.34
= 3.3 × 109
The total length of DNA molecule in nm = 1.1 × 109 nm.
The approximate number of base pairs = 1.1 × 109/ 0.34
= 3.3 × 109
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If the length of a DNA molecule is 1.1 metres, what will be the approx...
Understanding DNA Length and Base Pairs
The length of a DNA molecule can be converted to the number of base pairs by using the known dimensions of DNA structure.
Key Information
- Length of DNA: A typical human DNA molecule is about 2 nanometers in diameter and approximately 0.34 nanometers per base pair.
- Total Length in Meters: Given that the DNA length is 1.1 meters, we first convert this length to nanometers for easier calculations.
- 1 meter = 1 x 10^9 nanometers
- Therefore, 1.1 meters = 1.1 x 10^9 nanometers.
Calculating Number of Base Pairs
- Base Pairs Calculation: To find the number of base pairs in the DNA, we divide the total length in nanometers by the length of one base pair.
- Length of one base pair = 0.34 nanometers.
- Formula:
- Number of base pairs = Total Length in nanometers / Length of one base pair
- Number of base pairs = (1.1 x 10^9 nm) / (0.34 nm) ≈ 3.24 x 10^9 base pairs.
Final Result
- The approximate number of base pairs in a 1.1-meter-long DNA molecule is around 3.3 x 10^9 base pairs, which aligns with option 'D'.
Conclusion
This calculation illustrates the vastness of genetic information contained within a single DNA molecule and highlights the complexity of our genetic makeup. Understanding these figures is crucial for fields like genetics, molecular biology, and medicine.
The length of a DNA molecule can be converted to the number of base pairs by using the known dimensions of DNA structure.
Key Information
- Length of DNA: A typical human DNA molecule is about 2 nanometers in diameter and approximately 0.34 nanometers per base pair.
- Total Length in Meters: Given that the DNA length is 1.1 meters, we first convert this length to nanometers for easier calculations.
- 1 meter = 1 x 10^9 nanometers
- Therefore, 1.1 meters = 1.1 x 10^9 nanometers.
Calculating Number of Base Pairs
- Base Pairs Calculation: To find the number of base pairs in the DNA, we divide the total length in nanometers by the length of one base pair.
- Length of one base pair = 0.34 nanometers.
- Formula:
- Number of base pairs = Total Length in nanometers / Length of one base pair
- Number of base pairs = (1.1 x 10^9 nm) / (0.34 nm) ≈ 3.24 x 10^9 base pairs.
Final Result
- The approximate number of base pairs in a 1.1-meter-long DNA molecule is around 3.3 x 10^9 base pairs, which aligns with option 'D'.
Conclusion
This calculation illustrates the vastness of genetic information contained within a single DNA molecule and highlights the complexity of our genetic makeup. Understanding these figures is crucial for fields like genetics, molecular biology, and medicine.
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If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs? (NEET 2022)a)6.6 x 109bpb)3.3 x 106bpc)6.6 x 106bpd)3.3 x 109bpCorrect answer is option 'D'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs? (NEET 2022)a)6.6 x 109bpb)3.3 x 106bpc)6.6 x 106bpd)3.3 x 109bpCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs? (NEET 2022)a)6.6 x 109bpb)3.3 x 106bpc)6.6 x 106bpd)3.3 x 109bpCorrect answer is option 'D'. Can you explain this answer?.
If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs? (NEET 2022)a)6.6 x 109bpb)3.3 x 106bpc)6.6 x 106bpd)3.3 x 109bpCorrect answer is option 'D'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs? (NEET 2022)a)6.6 x 109bpb)3.3 x 106bpc)6.6 x 106bpd)3.3 x 109bpCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs? (NEET 2022)a)6.6 x 109bpb)3.3 x 106bpc)6.6 x 106bpd)3.3 x 109bpCorrect answer is option 'D'. Can you explain this answer?.
Solutions for If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs? (NEET 2022)a)6.6 x 109bpb)3.3 x 106bpc)6.6 x 106bpd)3.3 x 109bpCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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