In guinea pigs, black coat (B) is dominant over white coat (b). What are the phenotype and genotype ratios of a cross between a heterozygous black-coated guinea pig and a white-coated guinea pig?

genotype of offspring = Bb, Bb, bb, bb

phenotype - 50% black, 50% white

Explanation:

genotype of  a heterozygous black-coated guinea pig = Bb

genotype of a white-coated guinea pig = bb

Bb x bb

Bb, Bb, bb, bb

50 % of the offspring will be black and 50 % will be white

hope this helps

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.

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.