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Study Pollen Tube Growth on Stigma
1)How many pollen tubes emerge from a pollen grain?
  
2)Which medium is used commonly for pollen germination?
  
3)What does the pollen tube carry?
  
4)Where is the pollen tube form on a flower?
  
5)Which is the female reproductive part of a flower?
  
6)How many male gametes are produced in a pollen tube?
  
7)Which is male reproductive part of flower?
  
8)Which part of flower produces pollen grains?
  
9)What is the yellow centre of a flower called?
  
10)Thin stalk that supports anther are called as?
  
11)Process of moving pollen grains from a flower's anthers to its stigma is called as?
  
12)Pollen tube enters ovule through integument of ovule it is called as?
  
13)Sperm cells in a pollen tube fuses with the egg cell of an ovule and forms embryo this process is called as