Symptoms of conjugate gaze palsies include the impairment of gaze in various directions and different types of movement, depending on the type of gaze palsy. Signs of a person with a gaze palsy may be frequent movement of the head instead of the eyes.
Agarose is used to separate DNA because it has a neutral charge and low chemical complexity - meaning it is unlikely to react with biomolecules. It is also an easily cast and handled matrix. Plus, samples are very easy to recover when you use agarose gel. 4 people found this useful.
The discovery of enzymes that could cut and paste DNA made genetic engineering possible. These enzymes, restriction enzymes, are found naturally in bacteria, can be used to cut DNA fragments at specific sequences, while another enzyme, DNA ligase, can attach or rejoin DNA fragments with complementary ends.