Dentition of a 48,XYY,+21 male
β Scribed by Grant Townsend
- Publisher
- Springer
- Year
- 1982
- Tongue
- English
- Weight
- 165 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0340-6717
No coin nor oath required. For personal study only.
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## Abstract During a routine ultrasound study on a fetus at 21 weeks, nuchal edema was noted. At 21 weeks, repeat ultrasound study at our unit showed scalp and neck edema and a femur length/biparietal diameter ratio below the mean. Transabdominal chorionic villus sampling identified a 48.XYY, + 21
A series of 3545 newborn males, born consecutively at a maternity hospital in the western suburbs of Tokyo and with no detectable physical abnormalities, were studied for fluorescent Y-chromatin. Buccal cell smears from each infant were screened. Cases with ambiguous results were subjected to a seco
In the mouse XYY males are sterile, presumably because pairing abnormalities resulting from the presence of three sex chromosomes lead to meiotic breakdown. We have produced male mice, designated XYY\*X, that have three sex chromosomes pairing regions but only one intact Y chromosome. Unexpectedly X