How many meiotic and mitotic divisions are re | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) $1$. The process begins with a diploid megaspore mother cell $(MMC)$.$2$. The $MMC$ undergoes one meiotic division (meiosis) to produce four haplo

Vedclass · Accepted Answer

One meiotic and three mitotic divisions

Vedclass · Answer

(A) $1$. The process begins with a diploid megaspore mother cell $(MMC)$.$2$. The $MMC$ undergoes one meiotic division (meiosis) to produce four haploid megaspores.$3$. Three of these megaspores degenerate,and one functional megaspore develops into the female gametophyte (embryo sac).$4$. The nucleus of the functional megaspore undergoes three successive free nuclear mitotic divisions to form an $8$-nucleated structure.$5$. These nuclei then organize into the $7$-celled,$8$-nucleated mature embryo sac.$6$. Therefore,the formation requires $1$ meiotic division and $3$ mitotic divisions.

How many meiotic and mitotic divisions are required for the formation of a fully mature female gametophyte (embryo sac) from a megaspore mother cell?

Similar Questions

Identify the labelled parts $X, Y$ and $Z$ from the given figure of an embryo sac:

In $Capsella$,from where does the embryo sac derive its nutrition?

In the embryo sac,after which stage does cell wall formation occur?

Where is the female gamete formed?

In angiosperms,the functional megaspore develops into which of the following?

Vedclass Test Series

Exam Paper Generator

Online Exam Module