Question

A standard curve was plotted by measuring DNA fragment size and migration distance as seen on a gel electrophoresis. What phenomenon is illustrated by the data on the standard curve.

A) Larger fragments move faster and farther than smaller fragments.
B) There is a linear relationship between fragment size and migration distance.
C) Smaller fragments move exponentially more quickly and travel a farther distance.
D) A fragment size of 1000 bases will move twice as fast and far as a fragment of 2000 bases.

Answer 1

The correct answer is D a fragment size of 1000 bases will move twice as fast ansd far as fragment of 2000 bases.

Step-by-step explanation:

We all know that in an electrophoretic gel the larger fragments moves at a slow rate than that of a small fragment.

The fragment size containing 1000 bases is smaller than the fragment containing 2000 bases.

According to graph to 1000 bases fragment has traveled a distance of 4.5 cm whereas the distance traveled by 2000 bases fragment is 2.7 cm.

From this point of view it can be stated that A fragment containing 1000 bases will move twice as fast and far as a fragment of 2000 bases.