Copyright © 2024 Farlex, Inc.
| Privacy policy
| Feedback | Dictionary Home
Disclaimer: All content on this website is for informational purposes only. It was submitted by the users and has not been checked for accuracy. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
abnormal chromosome effects
Definition
Abnormal sex chromosome constitutions, such as XXX, XXY, XO, in fertilized eggs containing too many or too few sex chromosomes. People with XXX (triple-X or X-trisomy) chromosome constitution have the appearance of normal females but are called superfemales (some will be fertile); the XO (one X but lacking a Y) chromosome constitution are also females in appearance but remain immature (See: Turner's syndrome); XXY have enough Y chromosomal influence to look like males but have small testes and do not produce spermatozoa (See: Klinefelter's syndrome). More abnormal and rarer genetic anomalies such as XXXY, XXXXY, XXYY result in Klinefelter's syndrome and mental retardation.See also: XXX; X-trisomy; XXY; XO; XXYY; XXXXY.
Link to this page: