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Question

Which of the following have the largest sperm?

A
Pinus
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B
Cycas
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C
Ephedra
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D
Sequoia
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Solution

The correct option is B Cycas
Cycads are like all seed-producing plants with a dominant diploid sporophyte phase in their life cycle. The male gametes are motile and ovules are orthotropous. Pollination takes place by air. The sperms cells are the largest and measure up to 300 m in size and visible to the naked eye.

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