Well, if pepsin reacts (breaks down) proteins then we must ask: is glucose a protein? No, it's not, it's a carbohydrate. so it would most likelt not react with glucose.
Yellow [YY] And Green [yy] would be [Yy] (Still yellow)
No, it would not be possible since both alleles in the genotype are recessive. If the alleles were xx for square jaws, then
x x
x xx xx
x xx xx
would be the possible genotypes for the offspring
Yes
they are
i am sure of it