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A small number of pregnant women have some vaginal bleeding, with or without abdominal cramps, during the first trimester of pregnancy. When the symptoms indicate a miscarriage is possible, the condition is called a"threatened abortion."
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Chromosomal abnormalities describe changes in the normal number of chromosomes or structural problems within the chromosomes themselves. These abnormalities occur when an egg or sperm with an incorrect number of chromosomes, or a structurally faul...
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Detailed information on the most common chromosomal abnormalities There are many different types of chromosome abnormalities that require clinical care by a physician or other healthcare professional. Listed in the directory below are some, for which we have provided a brief overview.
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Chromosomal abnormalities describe changes in the normal number of chromosomes or structural problems within the chromosomes themselves. These abnormalities occur when an egg or sperm with an incorrect number of chromosomes, or a structurally faul...
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Detailed information on chromosome abnormalities, including trisomies, monosomies, and genetic translocations
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Detailed information on chromosome abnormalities, including how a chromosome is inherited
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Detailed information on how chromosome abnormalities happen: meiosis, mitosis, maternal age, and environment
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Detailed information on the different types of chromosome abnormality There are many different types of chromosome abnormalities that require clinical care by a physician or other healthcare professional. Listed in the directory below are some, for which we have provided a brief overview.
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Detailed information on mosaicism and the chance that a chromosome abnormality will occur again
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Detailed information on the difference between a single gene defect and a chromosome abnormality
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