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 Form 3 Biology video questions and answers on reproduction in plants

The diagram below illustrates a growing pollen tube.
figreproductioninplants19820201530.JPG
(a) Name the part labeled B
(b) Explain the role of the parts A.

 (1m 24s)
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Answer Text:
a)- Tube nucleus
b)-Male nuclei where one male nucleus fuses with functional egg to form a diploid zygote while the other fuses with polar nuclei to
form triploid which become the primary endosperm.


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