SEX LINKED DOMINANT TRAITS PROFESSIONAL
A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. is also a founding member of Hi-Ethics and subscribes to the principles of the Health on the Net Foundation (The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. Learn more about A.D.A.M.'s editorial policy, editorial process and privacy policy. is among the first to achieve this important distinction for online health information and services. follows rigorous standards of quality and accountability.
is accredited by URAC, also known as the American Accreditation HealthCare Commission (URAC's accreditation program is an independent audit to verify that A.D.A.M. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Review provided by VeriMed Healthcare Network. Edens Hurst, MD, MS, Assistant Professor in Medical Genetics, The University of Alabama at Birmingham, Birmingham, AL. Sex-linked and nontraditional modes of inheritance. Creasy and Resnik's Maternal-Fetal Medicine: Principles and Practice. In: Resnik R, Lockwood CJ, Moore TR, Greene MF, Copel JA, Silver RM, eds. Human genetics and patterns of inheritance. Philadelphia, PA: Elsevier Saunders 2016:chap 43. Related Information Genesįeero WG, Zazove P, Chen F. Therefore, there may be an increased rate of miscarriages in the family or fewer male children than expected. Some X-linked dominant disorders are so severe that males with the genetic disorder may die before birth. The chance of inheritance is new with each conception, so these expected odds may not be what actually occurs in a family. These odds do not mean that the children who inherit the abnormal X will show severe symptoms of the disease. If there are four children (two boys and two girls) and the father is affected (he has one abnormal X and has the disease) but the mother is not, the expected odds are: Two children (one girl and one boy) will not have the disease.Two children (one girl and one boy) will have the disease.If the mother carries the abnormal X gene, half of all their children (daughters and sons) will inherit the disease tendency.įor example, if there are four children (two boys and two girls) and the mother is affected (she has one abnormal X and has the disease) but the father does not have the abnormal X gene, the expected odds are: That is because daughters always inherit their father's X chromosome. The abnormal gene dominates the gene pair.įor an X-linked dominant disorder: If the father carries the abnormal X gene, all of his daughters will inherit the disease and none of his sons will have the disease. Sex-linked diseases are inherited through one of the sex chromosomes, which are the X and Y chromosomes.ĭominant inheritance occurs when an abnormal gene from one parent can cause a disease, even though a matching gene from the other parent is normal. It also depends on whether the trait is dominant or recessive. It can be either an autosomal chromosome or a sex chromosome. Inheritance of a specific disease, condition, or trait depends on the type of chromosome that is affected. One abnormal gene on the X chromosome can cause a sex-linked dominant disease.
Sex-linked dominant is a rare way that a trait or disorder can be passed down through families. Inheritance - sex-linked dominant Genetics - sex-linked dominant X-linked dominant Y-linked dominant Sex-linked dominant Site Map Sex-linked dominant
0 kommentar(er)
