In   angiosperms, microsporogenesis and megasporogenesis:

  • Option 1)

    form gametes without further divisions

  • Option 2)

    Involve meiosis

  • Option 3)

    occur in ovule

  • Option 4)

    occur in anther

 

Answers (1)

 

Megasporogenesis -

The process of formation of megaspores from the megaspore mother cell is called megasporogenesis. 
Ovules generally differentiate a single megaspore mother cell (MMC) in the micropylar region of the nucellus. It is a large cell containing dense cytoplasm and a prominent nucleus. 

- wherein

Meiosis results in the production of four megaspores .

 

 

Microsporongenesis -

As the anther develops, the cells of the sporogenous tissue undergo meiotic divisions to form microspore tetrads. As each cell of the sprorogenous tissue is capable of giving rise to a microspore tetrad. Each one is a potential pollen or microspore mother cell.

- wherein

The process of formation of microspores from a pollen mother cell (PMC) through meiosis is called microsporogenesis. 

 

microsporogenesis &  Megasporogenesis takes place through meiosis.


Option 1)

form gametes without further divisions

Incorrect

Option 2)

Involve meiosis

Correct

Option 3)

occur in ovule

Incorrect

Option 4)

occur in anther

Correct

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