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Chapter 24: Q6P (page 875)

Use the information in Table 11-1 to estimate the half-life, in years, of a phosphodiester bond in DNA.

Short Answer

Expert verified

A phosphodiester bond has a half-life of 548,387 years.

Step by step solution

01

Definition of Half-Life period.

The half-life is the amount of time it takes for a quantity to decline to half its original value.

The phosphodiester bond in DNA is dissolved bydeoxyribonuclease enzymes.

02

Identification of the rate of reaction.

The enzyme Staphylococcal nuclease is sufficient to break the phosphodiester link. The Nonenzymatic Reaction Rate s-1 of phosphodiester bond hydrolysis is1.7脳10-13 as seen in the table.

03

Calculation of the half-life of phosphodiester bond.

As a result, one reaction takes1.7脳1013seconds. A year is made up of3.1脳107.

Now, figure out how many years are1.7脳1013seconds:

1.7脳10133.1脳107=548,387years

Hence, a phosphodiester bond has a half-life of 548,387 years.

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