DNA move through an agarose gel because DNA molecules are negatively charged due to the presence of phosphate groups in their sugar-phosphate backbone which make them to move toward the positive charge in the agarose gel.
<h3>What is DNA?</h3>
Deoxyribonucleic acid or DNA is a protein molecule that us found in the nucleus of a cells which carry the genetic components or content of the cell and are transfer from parent to tye offspring.
Therefore, DNA move through an agarose gel because DNA molecules are negatively charged due to the presence of phosphate groups in their sugar-phosphate backbone which make them to move toward the positive charge in the agarose gel.
Learn more about DNA below.
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Food handlers should wash their hands before cooking food with molds and yeasts.
Answer:
See the answer below
Explanation:
<em>Both conclusions can be valid because they are based on valid data and scientific reasoning.</em>
In order for a data to be valid in making a conclusion, such data must have been collected through a scientific experiment that is devoid of subjectivism. In order words, the data must have been objectively collected via standard experimental procedures.
Once data have been collected, they are analyzed and used to make valid conclusions based on the hypothesis which must have been made earlier before the experiment.
Conclusions made from standard experimental procedures and scientific reasonings are valid and such experiments are reproducible.
<em>Hence, as long as the data from which the conclusions were made can be reproduced through the same experiments, the conclusions are valid.</em>
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