So Mendel got roughly 75% yellow and 25% green in f2. This means that f1 contains all heterozygous genes, as shown below
Y y
Y YY Yy
y Yy yy
Summary: 75% YY or Yy, 25% yy
Which means that green (y) is a recessive phenotype, while yellow (Y) is a dominant phenotype, since plants with heterozygous genotype Yy express the yellow trait.
The purpose of an indicator is to test how acidic or basic something is.
Cyclic phosphorylation is a kind of phosphorylation in which ATP is formed from an ADP when phosphate group is attached to it during light reaction of photosynthesis.