Final answer:
The average radius of double-stranded DNA in water can be calculated using the link length and the number of links.
Step-by-step explanation:
The average radius of a piece of double-stranded DNA in water can be calculated using the link length and the number of links. The link length is given as 5.1 nm, and the number of links is 2616465.
To calculate the average radius, multiply the link length by the number of links and divide by 2π. This is because the length of the DNA can be thought of as the circumference of a circle, so the radius is half of the circumference. Using this formula, the average radius can be calculated as follows:
Radius = (Link Length * Number of Links) / (2π)
Substituting the given values:
Radius = (5.1 nm * 2616465) / (2π)
After calculating this, the average radius of the DNA can be determined.