How is the ratio of gas produced during fermentation related to yeast glucose solution

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele

Why has two different alleles for the same trait?