If a “unit” is defined as the amount of enzyme needed to digest 1μg of dna in 1 hour at 37°c, how many units would it take to digest 10 ug of dna in 30 min?

20 units.

Explanation:

A unit can be defined as the amount of the enzyme required to digest the DNA of 1μg in 1 hour at the 37°C temperature.

1 unit = 1 μg DNA in 1 hour or 60 minutes.

The units required to digest the 10 μg of DNA in 30 min.

Let the number of units required be X.

unit      DNA amount    Time (min)

1            1                        60

X          10                      30

We can write,

X = 20 unit.

Thus, the number of units required to digest 10μg of DNA is 20 units.

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