New research shows that X and Y sperm have the same shape and size

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re: New research shows that X and Y sperm have the same shape and size

pinkdreams23 — Wed, 16 Jan 2008 02:58:47 GMT

I am a mother of 2 wonderful boys. I have read countless emails and such about how to sway my odds of for a girl. Where Do I begin..? How much cranberry ? and so forth..

Thanks, for any help!!

About the Ericsson method for gender selection

Maureen — Wed, 18 Jan 2006 19:26:23 GMT

I think the important fact is that, regardless of whatever theory the Ericsson method is operating under, the method does NOT actually separate X and Y sperm, which is what the method claims to do. This has been shown in repeated tests. (Click Medical Gender Selection above, then Sperm Spinning (Ericsson) for more information.)

If this procedure is designed to separate the fastest swimming sperm, but winds up with an equal number of X's and Y's, that makes it look like Y's aren't any faster than the X's.

re: New research shows that X and Y sperm have the same shape and size

Melissa2sweeties — Wed, 18 Jan 2006 15:54:34 GMT

Hi Maureen,
Do you think that this new info might also affect or change the theory of the Ericcson Method - I think that method also goes on the principle that the Y sperm are faster (It puts them through an Albumin medium for seperation), as I understand. Just wondering as we are considering for next baby - Have 2 DD's. also can you give me your opinion on E-method, or anything youv'e heard or seen in your experience here on the boards?
Thanks so much!
Melissa

How does MicroSort work if X and Y sperm are the same size?

Maureen — Tue, 17 Jan 2006 13:22:07 GMT

Several people have asked how MicroSort can work if there is no size difference between X and Y sperm.

MicroSort does not depend on any physical characteristics of the sperm, such as size, shape, or weight. Instead, MicroSort works by "measuring" the amount if DNA in a sperm cell.

A fluorescent dye is applied the the sperm, and the dye absorbed by the DNA. Sperm cells which have more DNA glow brighter -- these are the X sperm.

Still, an X sperm only has 2.8% more total DNA than a Y sperm, so this is a tough job, explaining why MicroSort isn't perfect.

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