Read the following statements and find out the incorrect statements.
a. Ovules generally differentiate a single megaspore mother cell (MMC) in the chalazal region of the nucellus.
b. The MMC undergoes reduction division and produces four megaspores.
c. In a majority of angiosperms, one of the megaspore is degenerated while the other three remains functional.
d. The nucleus of the functional megaspore divides mitotically three times and form 2-nucleate, 4-nucleate and later 8-nucleate stages of the embryo sac.
e. These mitotic division are strictly free nuclear, that is, nuclear division are immediately followed by cell wall formation.

Options

A. a, b and c
B. b, c and d
C. c, d and d
D. a, c and e

Answer

D

Explanation

• Ovules generally differentiate a single megaspore mother cell (MMC) in the micropylar region of the Nucellus.
• In a majority of angiosperms, one of the megaspore remains functional while the other three degenerated.
• These mitotic division are strictly free nuclear, that is, nuclear division are not immediately followed by cell wall formation.