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trisomy    
三染色体性; 三体性

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  • Trisomy: Types of Trisomy Disorders - Cleveland Clinic
    Trisomy is a genetic condition where a person is born with an extra chromosome The most common type of trisomy is Down syndrome
  • Trisomy - Wikipedia
    A trisomy is a type of polysomy in which there are three instances of a particular chromosome, instead of the normal two [1] A trisomy is a type of aneuploidy (an abnormal number of chromosomes)
  • Types of Trisomy: Causes and Symptoms - Verywell Health
    Trisomy occurs when a person has three copies of a chromosome instead of two, leading to conditions like Down syndrome, Edwards syndrome, and others These genetic disorders can vary greatly in their symptoms and impact on health
  • Trisomy 18 and 13 - Childrens Hospital of Philadelphia
    Trisomy 18 and trisomy 13 are genetic disorders that include a combination of birth defects This includes severe intellectual disability, as well as health problems involving nearly every organ system in the body Unfortunately, most babies born with trisomy 18 or 13 die by age 1
  • Trisomy 18 Syndrome | Trisomy 13 Syndrome | Trisiomy 9 Syndrome - SOFT
    Trisomy (‘three bodies’) means the affected person has 47 chromosomes instead of 46 Down syndrome, Edward syndrome and Patau syndrome are the most common forms of trisomy Children affected by trisomy usually have a range of birth defects, including delayed development and intellectual disabilities
  • Down syndrome - Wikipedia
    Down syndrome or Down's syndrome, [12][13] also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21 [3] It is usually associated with developmental delays, mild to moderate intellectual disability, and characteristic physical features [1][14]
  • Trisomy 13 (Patau Syndrome): Symptoms, Causes Outlook
    Trisomy 13 (Patau syndrome) is a rare genetic condition when an extra copy of chromosome 13 attaches to a pair of chromosomes Symptoms affect how the face, brain and heart develop, along with several other internal organs
  • What Is Trisomy? Causes, Types, and Detection - Biology Insights
    Understand the science behind trisomy, its major types, detection methods, and the outlook for affected individuals and families
  • Trisomy | Description, Cause, Examples | Britannica
    Trisomy can affect some or all cells in the body and is present at birth, often being associated with various congenital disorders Trisomies are caused by spontaneous and random errors in the separation of a chromosome pair in the course of cell division (meiosis) during fertilization
  • Triple X syndrome - Symptoms causes - Mayo Clinic
    Triple X syndrome, also called trisomy X or 47,XXX, is a genetic disorder that affects about 1 in 1,000 females Females normally have two X chromosomes in all cells — one X chromosome from each parent





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