1 Zachery Ty Bryan actor, Aurora. 2  Ralph Edwards, TV and radio producer was born in Merino, Colorado, in 1913. 3  In 1940, he created the popular Truth or Consequences program, which quickly became radio's top-ranked audience participation show.
Seed Plants. The sporophyte is also the dominant generation in seed plants. Seed plants are vascular plants that produce seeds and include some nonflowering plants (like pine trees) and flowering plants (like oak trees and roses). So when you see any of these plants, you are looking at the sporophyte. sporophyte is created by sexual reproduction of the gametophyte generation. Gametophytes make haploid unicellular gametes, or sperm and eggs. When a sperm cell fuses with an egg cell this is called fertilization. It creates a unicellular diploid zygote.
Even though both gametophytes and sporophytes contain the genetic material of the plant species in question, these different life phases often look different. Most complex vascular plants spend more time as sporophytes, but mosses are different: the visible part of the plant is actually the gametophyte stage for these species. Haploid gametophytes only have one copy of each chromosome in each of their cells, which is why this life phase must reproduce asexually. Eventually gametophytes produce gametes which combine to form a diploid zygote. This zygote grows into the sporophyte form. Diploid sporophytes have two copies of each chromosome and are therefore able to undergo meiosis to form haploid spores that grow into gametophytes, bringing the alternation of generations full circle.