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B
Basal
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C
Intercalary
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D
Diffused
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Solution
The correct option is C Apical After the germination of pollen grains on stigma pollen tube is produced through a germ pore . Pollen tube grows chemotropically through the tissue of stigma and style in response to sugary fluid.
No intercalary meristem is present so pollen tube cannot exhibit intercalary growth , because of chemical stimulus pollen tube grows apically and not basally or diffused.