KCET 2016 Biology Solved Paper

→ In pteridophytes, each spore upon germination gives rise to a free-living, green multicellular gametophyte called prothallus.
→ In gymnosperms, the microsporophyll bears microsporangia on the abaxial surface that are attached to it by a short stalk.
→ In mosses, a gametophytic structure called protonema, a green filamentous structure bearing buds is formed. Each bud grows into an adult gametophytic plant
→ In angiosperm, the sperm nucleus fuses with the diploid secondary nucleus (this is called triple fusion) of the embryosac, producing a triploid primary endosperm nucleus (PEN).