In a typical mammalian cell the length o...

In a typical mammalian cell the length of DNA is

`6.6 times 10^(9)bp times 0.34 times 10^(-9)m`

approximately 2.2 metres

1.36 mm

both 1 and 2

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To determine the length of DNA in a typical mammalian cell, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding DNA Structure**: - In mammalian cells, DNA is tightly coiled and condensed. This is crucial for fitting the DNA into the nucleus of the cell. 2. **Unwinding the DNA**: - If we were to unwind the condensed DNA and stretch it out, it would measure approximately 2 meters to 2.2 meters in length. 3. **Counting Chromosomes**: - Mammalian cells typically contain 23 pairs of chromosomes. Each chromosome has a DNA molecule. 4. **Total Length Calculation**: - If we consider all 23 pairs of chromosomes, the total length of DNA in a human cell would be more than 22 meters when fully unwound, but in a single cell, the length of DNA is approximately 2.2 meters. 5. **Conclusion**: - Therefore, the length of DNA in a typical mammalian cell is approximately 2.2 meters. ### Final Answer: The length of DNA in a typical mammalian cell is approximately **2.2 meters**. ---

Assertion : If each strand from a parental DNA acts as template for synthesis of a new strand, the two double stranded daughter DNA thus produced would be indentical to the parental DNA molecule. Reason : The length of DNA double helix in a typical mammalian cell is calculate simply by multiplying the total number of bp with distance two consecutive bp.

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

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

If assertion is true but reason is false.

If both assertion and reason are false.

If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a RNA double helix in a typical mammalian cell is 6.6xx10^(9) bp, then the length of the DNA is approximately:

2.5 meters

2.2 meters

2.7 meters

2.0 meters

In a typical fuel cell, the reactants (R) and product (P) are:

`R = H_(2(g)^(+)), O_(2(g)), P= H_(2)O(l)`

`R = H_(2(g)^(+))^(@) , O_(2g^(+)) , P H_(2)O_(l)`

`R = H_(2(g)^(+)), N_(2)(g)^(+), P = NH_(3)(aq)`

`R= H_(2(g)^(+)) O_(2(g)), P= H_(2)O(2l)`

In a typical mammalian cell the length of DNA is

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If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a RNA double helix in a typical mammalian cell is 6.6xx10^(9) bp, then the length of the DNA is approximately:

In a typical fuel cell, the reactants (R) and product (P) are:

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