NEETBotanySexual Reproduction in Flowering Plants
Read the following statements regarding the development of a typical female gametophyte in angiosperms: (A) The method of embryo sac formation from a single megaspore is termed monosporic development. (B) The mitotic divisions of the functional megaspore are strictly free-nuclear. (C) Cell wall formation occurs immediately after every mitotic division. (D) Six of the eight nuclei are surrounded by cell walls and orga
Options
- AOnly two
- BOnly three
- CAll four
- DOnly one
Correct answer
B. Only three
Step-by-step solution
Statement (A) is correct as the development of an embryo sac from a single functional megaspore is called monosporic development. Statement (B) is correct because the mitotic divisions during megagametogenesis are strictly free-nuclear, meaning nuclear divisions are not immediately followed by cell wall formation. Statement (C) is incorrect because cell walls are not laid down immediately after every division; they are formed only after the 8-nucleate stage is reached, leading to the organization of the typical fem