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At the time of entering into ovule, pollen tube has :
  • a)
    three male nuclei
  • b)
    two male nuclei 
  • c)
     one gamete nucleus
  • d)
    four male gamets
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
At the time of entering into ovule, pollen tube has :a)three male nucl...
At the time of pollination, tube nucleus is present, i.e. the pollen grain is usually 3-celled (tube cell + two male gametes). the tube nucleus degenerate when the pollen tube enters the ovary. So, at the time of entering into ovule, the pollen tube has 2 male nuclei.
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At the time of entering into ovule, pollen tube has :a)three male nucleib)two male nucleic)one gamete nucleusd)four male gametsCorrect answer is option 'B'. Can you explain this answer?
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