Which of the following is polar? a. a molecule which has a partial positive charge on one atom and a partial negative charge on another atom
b. an atom that has donated an electron to another atom
c. an atom that has accepted an electron to another atom

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

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:

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