Alexander fleming accidentally discovered the antibiotic properties of the penicillium mold in 1928. true or false

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .

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:

d. groundwater flows through the subsoil and deposits minerals.