Sentences with phrase «frozen human sperm»

Not exact matches

Given the interest in freezing human eggs and sperm for later use, it made me wonder whether I should advise my grandchildren to put some of their blood in the freezer for their own possible use in the future.
To test this, frozen samples of human and bull sperm were sent to the station and the plan is for the crew on board to thaw the samples before adding a chemical that can activate the sperm movement, which occurs before the space sperm can fuse with an egg.
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