A pair of flies reproduces and has 2,000 offspring. All 2,000 of the offspring have the alleles Rr. What is the most likely combination of alleles that each parent has, and why are other combinations not likely?

How is the life cycle of seedless vascular plants different from the life cycle of nonvascular plants? the adult form of each seedless vascular plant has xylem and phloem. the gametophyte stage is lacking in the life cycle of seedless vascular plants. the sperm of seedless vascular plants do not need to swim in water. the zygote of each seedless vascular plant forms before the egg is fertilized. asap