NEET BIOLOGY

Detailed explanation-1: -Ovule of an angiosperm is equivalent to megasporangium which consists of 2 synergids, 1 egg, 3 antipodal cells and a secondary nucleus. Megaspore mother cell (2n) gives rise to ovule, Megasporophylls are sterile structures on which ovules may be present.

Detailed explanation-2: -Megasporangium is equivalent to the ovule which is present inside the ovary that is connected to the cushion which is referred to as the placenta. It consists of a single embryo sac that is formed from a megaspore employing reduction division.

Detailed explanation-3: -Technically, the ovule of an angiosperm is referred to as the megasporangium.

Detailed explanation-4: -Megasporangium in Angiosperms Megasporangium or the ovule contains megaspores. Megaspores further divide to give rise to the megagametophyte. After this division, remnants are the only things left, and they form the whole of the nucellus. Hence, Nucellus is the megasporangium in an Angiosperm ovule.

Detailed explanation-5: -Megasporangium, also known as the ovule, houses megaspore mother cells. Diploid cells are the mother cells of megaspores (2n cells). Meiosis is the process by which these mother cells divide to produce haploid cells (n cells).