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  1. 47,XYY syndrome 
    ... an extra copy of the Y chromosome in each of an individual's cells. Although many people ... XYY syndrome are born in the United States each day. Many affected individuals are never diagnosed or ...
    https://medlineplus.gov/genetics/condition/47xyy-syndrome - Genetics
  2. Thrombocytopenia-absent radius syndrome 
    ... absence of a bone called the radius in each forearm and a shortage (deficiency) of blood cells ... the other copy of the RBM8A gene in each cell. A small number of affected individuals have ...
    https://medlineplus.gov/.../thrombocytopenia-absent-radius-syndrome - Genetics
  3. Trisomy X 
    ... the presence of an additional X chromosome in each of a female's cells. Although females with ... trisomy X are born in the United States each day. People normally have 46 chromosomes in each ...
    https://medlineplus.gov/genetics/condition/trisomy-x - Genetics
  4. 9q22.3 microdeletion 
    ... small piece of chromosome 9 is deleted in each cell. The deletion occurs on the long (q) ... of the two copies of chromosome 9 in each cell.People with a 9q22.3 microdeletion are ...
    https://medlineplus.gov/genetics/condition/9q223-microdeletion - Genetics
  5. 46,XX testicular difference of sex development 
    ... in which individuals with two X chromosomes in each cell, the pattern typically found in females, have ... sex development. People normally have 46 chromosomes in each cell. Two of the 46 chromosomes, known as ...
    https://medlineplus.gov/...-testicular-difference-of-sex-development - Genetics
  6. What is a gene?: MedlinePlus Genetics 
    ... 000 genes. Every person has two copies of each gene, one inherited from each parent. Most genes are the same in all ... of DNA bases. These small differences contribute to each person’s unique physical features. Scientists keep track ...
    https://medlineplus.gov/genetics/understanding/basics/gene - Genetics
  7. 17q12 deletion syndrome 
    ... of a small piece of chromosome 17 in each cell. The deletion occurs on the long (q) ... of the two copies of chromosome 17 in each cell.The deleted segment is surrounded by short, ...
    https://medlineplus.gov/genetics/condition/17q12-deletion-syndrome - Genetics
  8. What is a chromosome?: MedlinePlus Genetics 
    In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled ...
    https://medlineplus.gov/genetics/understanding/basics/chromosome - Genetics
  9. 15q13.3 microdeletion 
    ... small piece of chromosome 15 is deleted in each cell. The deletion occurs on the long (q) ... of the two copies of chromosome 15 in each cell.The signs and symptoms that can result ...
    https://medlineplus.gov/genetics/condition/15q133-microdeletion - Genetics
  10. Are fingerprints determined by genetics?: MedlinePlus Genetics 
    Each person’s fingerprints are unique, which is why they have long been used as a way ... the details of the patterns are specific to each individual. Dermatoglyphs develop before birth and remain the ...
    https://medlineplus.gov/genetics/understanding/traits/fingerprints - Genetics
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