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12 Cards in this Set
- Front
- Back
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Aneuploidy |
A chromosomal aberration in which one or more chromosomes are present in extra copies or are deficient in number. |
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barr body |
a deactivated x chromome resulting from inactivation |
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deletion |
resulting from the loss of a chromosomal fragment during breakage |
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duplication |
fusion with a chromosomal fragment from a homolog, that portion of the chromosome is duplicated |
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hemizygous |
one copy of a gene |
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inversion |
reattachment in a reverse orientation of a chromosomal fragment |
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monosomic |
lacking the normal two chromosomes only has one |
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mosaic |
person or tissue that has two or more types of genetically different cells |
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nondisjunction |
error in meiosis or mitosis where both members of homologs fail to move apart properly |
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sexlinked genes |
gene on sex chromosome |
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wild type |
normal and most common phenotype |
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x linked |
gene on x chromosome |
