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Question

Siphonogamy is characteristics of

A
All spermatophytes
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B
Only gymnosperms
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C
Only angiosperms
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D
Only pteridophytes
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Solution

The correct option is A All spermatophytes
In siphonogamy, pollen tubes are developed for the transfer of male cells to the eggs. The seed plants are siphonogamous. But in the lower plants male cell actually swim to the egg. As a consequence, spermatocytes are sometimes called siphonogamous. It is a characteristic of all spermatocytes. So the correct answer is option A.

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