Journal Article

Human live birth and sperm–sex ratios compared

J. Graffelman, E.F. Fugger, K. Keyvanfar and J.D. Schulman

in Human Reproduction

Published on behalf of European Society of Human Reproduction and Embryology

Volume 14, issue 11, pages 2917-2920
Published in print November 1999 | ISSN: 0268-1161
Published online November 1999 | e-ISSN: 1460-2350 | DOI: https://dx.doi.org/10.1093/humrep/14.11.2917
Human live birth and sperm–sex ratios compared

Show Summary Details

Preview

The human secondary sex ratio is compared with the percentage of Y-chromosome bearing spermatozoa in human semen. Live birth sex ratio is about 51.3%, whereas the overall percentage of Y-chromosome bearing spermatozoa in our study samples was 50.3%, i.e. 1% closer to the proportion expected by Mendelian segregation. The observed difference between live birth and sperm–sex ratios was significant (P < 0.0001). A possible effect of male age on the percentage Y-bearing spermatozoa was found to be non-significant.

Keywords: fluorescence in-situ hybridization; secondary sex ratio; sperm–sex ratio

Journal Article.  1678 words.  Illustrated.

Subjects: Reproductive Medicine

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.