In Pinus, only lower part of oospore is concerned with the development of embryo, such development is

Meroblastic

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Periblastic

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Mesoblastic

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None of these

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Solution

The correct option is A Meroblastic
The development of the zygote is meroblastic, that is only the basal part develops into an embryo, while the upper (haustorial) and middle (suspensorial) parts do not participate in the formation of embryo.

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