Week 8 Homework #2
- Due Oct 27, 2012 at 10pm
- Points 10
- Questions 3
- Available Oct 20, 2012 at 8am - Oct 27, 2012 at 10pm
- Time Limit None
Instructions
A study to assess sperm quality investigated the sperm of 765 infertile men and 696 fertile men, with the following results:
Concentration | Motile cells | Normal morphology | |
Infertile men | <13.5 million/ml | <32% | <9% |
Fertile men | >48.0 million/ml | >63% | >12% |
Three couples meet at a fertility clinic. The women are fertile. Here are the stats on the men:
- Harold has a sperm count of 21.4 cells per milliliter, with 28% motile and 95% with abnormal morphology (shape).
- Peter has a sperm count of 8.6 million cells per milliliter, but 60% of the cells are of normal morphology and are motile (although these may not be the same 60%).
- Ralph learns that he has azoospermia. This means he has no mature sperm cells, but he does have spermatids.
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