what are tenuinucellate and crassinucellate?answer me soon plzzzz
Tenuinucellate means those ovules in which either nucellus is absent or a single layer of nucellus is present.
In crassinucelllate ovules, the nucellus expands by cell division during embryo sac development and ovule or embryo sac is surrounded by massive nucellus.
In crassinucelllate ovules, the nucellus expands by cell division during embryo sac development and ovule or embryo sac is surrounded by massive nucellus.