Search Results 1-10 of 15303 for Y chromosome

  1. Turner syndrome - Symptoms & causes - Mayo Clinic

    Most people are born with two sex chromosomes. Males inherit the X chromosome from their mothers and the Y chromosome from their fathers. Females inherit one X ...

  2. Klinefelter syndrome - Symptoms and causes - Mayo Clinic

    Females have two X sex chromosomes (XX). Males have an X and a Y sex chromosome (XY). Klinefelter syndrome can be caused by: One extra copy of the X chromosome ...

  3. Atypical genitalia - Symptoms and causes - Mayo Clinic

    In a fetus without a Y chromosome, and without the effects of androgens, the genitals develop as female. Sometimes a chromosomal change may make it hard to ...

  4. Triple X syndrome - Symptoms & causes - Mayo Clinic

    ... chromosomes — either XX or XY — determines a child's sex. A mother can give the child only an X chromosome, but a father can pass on an X or a Y chromosome:.

  5. Male hypogonadism - Symptoms & causes - Mayo Clinic

    In Klinefelter syndrome, two or more X chromosomes are present in addition to one Y chromosome. The Y chromosome contains the genetic material that ...

  6. Routine Cytogenetic Analysis - Cytogenetics Core - Mayo Clinic Research

    Q-banded metaphase from a healthy male with the Y chromosome (arrow) ... This staining method identifies heterochromatic regions found on chromosomes 1, 9, 15, 16 ...

  7. Not the end of the road: Delivering the diagnosis of sex-chromosome trisomy

    ... Y chromosomes. "The parents aren't thinking about screening for an X- or Y-chromosome trisomy," Dr. Allyse says. "But genetic testing can indicate a high ...

  8. Down syndrome - Symptoms and causes - Mayo Clinic

    This XY chromosome pair includes the X chromosome from the egg and the Y chromosome from the sperm. ... chromosome 21 on another chromosome, but no extra genetic ...

  9. Triple X syndrome - Diagnosis & treatment - Mayo Clinic

    You can also contact AXYS — the Association for X and Y Chromosome Variations. Look for disability support resources. Coping with a learning disability is ...

  10. Male infertility - Symptoms and causes - Mayo Clinic

    Chromosome defects. Inherited disorders such as Klinefelter's syndrome — in which a male is born with two X chromosomes and one Y chromosome (instead of one ...