F1 gens are basically the first group of offspring, and F2 are the offspring from interbreeding the F1 gen. then you create a punnet square using the parents genes, from there you can write the expected genotypes, so i think in this case it would be [ depending on parents ] rr , Rr, and RR.
<span>Natural wetlands are flat and often have deep, nutrient rich soil with an abundant water supply. These conditions are ideal to agriculture</span>