Germination of pollen grain on the stigma is

Autogamy

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In vivo germination

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In vitro germination

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None of the above

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Solution

The correct option is B In vivo germination
Germination of pollen grains completes on stigma. That is, it happens in, 'in vivo conditions'. 'In vivo conditions' refers to the condition where it happens in biological cell or biological conditions.

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The pollen grain fallen on stigma starts germinating pollen tube to rich ovules. what is it called?

pollination or somthing else?

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