The goal of a statement of purpose is:
O
A. to test a hypothesis.
O
B. to explain why an experiment is being done.
O
C. to make accurate measurements.
O
D. to record observations during an experiment.
SUBMI

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

synapse nervous system

answerblank(1); ecological; blank(2); evolutionary;