Gray seed color in peas is dominant to white. assume that mendel conducted a series of experiments where plants with gray seeds were crossed among themselves, and the following progeny were produced: 302 gray and 98 white. (a) what is the most probable genotype of each parent? (b) based on your answer in (a) above, what genotypic and phenotypic ratios are expected in these progeny? (assume the following symbols: g = gray and g = white.) (a) gg × gg; (b) genotypic = 1: 2: 1, phenotypic = 3: 1 (a) gg × gg; (b) genotypic = 1: 2: 1, phenotypic = 2: 1 (a) gg × gg; (b) genotypic = 1: 2, phenotypic = 3: 1 (a) gg × gg; (b) genotypic = 3: 1, phenotypic = 1: 2: 1 (a) gg × gg; (b) genotypic = 3: 1, phenotypic = 9: 3: 3: 1.

you can have just about every answer you can think of

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.