mutations can be both harmful and . indicate which of these can be caused by a genetic mutation.
a) aids
b) influenza
c) chickenpox
d) cystic fibrosis

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.