As the embryo develops in the embryo sac, the seed nucleus divides repeatedly in the process of mitosis to form many nuclei. Nuclei become cells containing cytoplasm. The cells fuse to form the seed or endosperm. The seeds are stored as food for the embryo. When the developing embryo absorbs the entire seed of the seed, the seed becomes asexual. A seed without a seed is called a seed. Mangoes, beans, chickpeas etc.
If the developing embryo does not absorb the whole seed, some part of the seed is still present in the seed. Such seeds are called sasyal seeds. Vegetable seeds like paddy, wheat, bhutra, redi, cotton etc.