Sperm plasma membrane


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plasma membrane Sperm


plasma membrane Sperm


plasma membrane Sperm


plasma membrane Sperm

Description:Attachment of two membranes through cell-surface molecules is followed by the physical merger of the plasma membrane lipids. Recent progress has demonstrated an essential role for an oocyte tetraspanin, CD9, in mouse sperm-egg fusion, and a specific molecular site crucial for CD9 function has been identified.

Views: 2387 Date: 28.10.2010 Favorited: 126 favorites

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hey plz ballbust me
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i would go gentle with that cute ass!
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very natural. liked to see many times.
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