When an organism has two alleles at a particular locus that are different, the organism is called?

The answer will be heterozygous:)

Explanation:

format change of dna.  

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.