1. Cytokinesis
2. Fusion
3. Fission
4. Meiosis
Fission
1. External agency
2. Self mechanism
3. Only wind
4. Only man
External agency
1. Partially developed male gametophyte
2. A sexual microspore
3. A partially developed embryo
4. Partially developed male gamete
A sexual microspore
1. Centriole
2. Spindle
3. Cleavage and furrows
4. Both b&c
Both b&c
1. Pectocellulose
2. Lignocelluloses
3. Sporopollenin
4. Pollen kit
Sporopollenin
1. Brightly coloured
2. Small
3. Scented
4. Both (a)and (c)
Both (a)and (c)
1. Kinetochore microtubule
2. Polar microtubule
3. Aster microtubule
4. Spindle microtubule
Kinetochore microtubule
1. Homogamy
2. Cleistogamy
3. Protogamy
4. Allogamy
Cleistogamy
1. Boron accelerates protein synthesis in pollen grain
2. Boron has an abrative effect on the exine
3. Boric acid servers as asolvent for sporopollenin
4. Pollen wall is boron deficient and high levels of boron occur in the styles and stigma
Pollen wall is boron deficient and high levels of boron occur in the styles and stigma
1. Each one fertilizes a separate agg cell to grive rise to two seeds
2. One fertilizes an egg cell and the other fertilizes another cell that gives rise to the tissue of the fruit
3. Both fertilizes a single egg cell
4. One fertilizes an egg cell and the other fertilizes the cell that forms food reserve tissue
One fertilizes an egg cell and the other fertilizes the cell that forms food reserve tissue