1. Somatic cells divide 20-25 times in vitro
2. Somatic cells for ever in vitro
3. Mammalian somatic cells divide 20-25 times in vitro
4. Shown by He La cells
Mammalian somatic cells divide 20-25 times in vitro
1. Bud condition
2. Cleistogamous condition
3. Bending of filaments to bring anthers in contact with stigma
4. Style bends to bring stigma in contact with anthers
Style bends to bring stigma in contact with anthers
1. Several days
2. 10 minutes to a few hours
3. Several weeks
4. Few seconds
10 minutes to a few hours
1. Large and heavy
2. Small and sticky
3. Small, dry and unwettable
4. Large, light and hygroscopic
Small, dry and unwettable
1. Feathery exserted stigma
2. Feathery inserted stigma
3. Narrow exserted stigma
4. Narrow inserted stigma
Feathery exserted stigma
1. Having of chromosome number between two daughter cells
2. Formation of two daughter cells with identical DNA
3. Segregation of maternal and paternal characters
4. Crossing over
Formation of two daughter cells with identical DNA
1. Hydrophilous
2. Cleistogamous
3. Anemophilous
4. Entomophilous
Hydrophilous
1. Tapetal cells
2. Anther wall
3. Microspores
4. Microspore mother cells
Microspore mother cells
1. Cleistogamous
2. Anemophilous
3. Entomophilous
4. Hydrophilous
Anemophilous
1. Seed germination
2. Formation of buds
3. Formation of pollen grains
4. Formation of male gametes
Formation of pollen grains