An investigator carefully isolates plasmid DNA with an alkaline lysis method, which is designed to minimize damage to the plasmid structure. The plasmid contains 4300 bp of DNA. What should the investigator expect to see on an agarose gel?

On the agarose gel, primarily four different forms of plasmid DNA is observed which are explained below.

Explanation:

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.

the answer is d. chordata