1. Tardigrade
  2. Question
  3. Biology
  4. 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.

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Q. 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.

Sexual Reproduction in Flowering Plants

Solution:

• Ovules generally differentiate a single megaspore mother cell (MMQ 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.