When chromatids fail to separate properly during which phase is this problem most likely to occur

metaphase

Explanation:

The failure of sister chromatids to separate during meiosis II occurs in metaphase stage. This is called as nondisjunction, this will affect the normal distribution of chromosomal material to the daughter cells. This will result in a problem called aneuploidy. There are abnormal number of chromosome per cell.

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.