Q.

In angiosperms, microsporogenesis and megasporogenesis              [2015]

1 involve meiosis  
2 occur in ovule  
3 occur in anther  
4 form gametes without further divisions  

Ans.

(1)

In angiosperms, microsporogenesis, i.e., formation of microspores (or pollen grains) occurs by the meiotic divisions of diploid microspore mother cells (or pollen mother cells). Microsporogenesis takes place in the anther. Megasporogenesis, i.e., formation of megaspores occurs by the meiotic divisions of diploid megaspore mother cells. Megasporogenesis takes place in the ovule.