In pea plants let symbol Y represent dominant yellow symbol y, the recessive green; symbol R the round seed shape and symbol r, the wrinkle seed shape. A typical Mendelian dihybrid cross was carried out in pea plants. Write the genotypes of :
(a) Homozygous dominant and recessive parents.
(b) Gametes produced by both the parents.
(c) F1 offspring.
(d) Gametes produced by F1 offspring.