The innermost layer of anther is tapetum whose function is :

• dehiscence
• mechanical
• nutrition
•  protection.

In a bisexual flower when the gynaecium matures earlier than anther, it is called as :

• protandry
• protogyny
• herkogyny
• None of the above.

Simultaneous meiotic division of microspore mother cells leads to :

• tetrahedral tetrad
• linear tetrad
•  isobilateral
• decussate tetrad.

The fertilization occurs in the :

• ovary
• ovule
• embryo sac
• nucellus.