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15 Cards in this Set
- Front
- Back
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Sex-linked Genes
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Genes which are present on the sex chromosomes.
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Linked Genes
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Genes located close enough together on a chromosome to be usually inherited together.
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Genetic Recombination
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A process that results in offspring inheriting a combination of genes from both parents.
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Recombinants
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An offspring whose genes differ from that of the parents.
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Hemophilia
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A hereditary genetic disorder that impairs the body's ability to control blood clotting.
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Barr Body
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A small, densely staining structure in the cell nuclei of female mammals, consisting of a condensed, inactive X chromosome.
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Nondisjunction
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The failure of one or more pairs of homologous chromosomes or sister chromatids to separate normally during nuclear division.
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Aneuploidy
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An abnormality caused by an extra or a missing chromosome.
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Trisomic
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Chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell.
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Monosomic
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Chromosomal abnormality consisting of the absence of one chromosome from the normal diploid number.
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Polyploidy
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A chromosomal alternation in which the organism possesses more than two complete chromosome sets.
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Deletion
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The loss or absence of one or more nucleotides from a chromosome.
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Duplication
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A portion of a certain chromosome has been duplicated.
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Inversion
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A reattachment of a chromosomal fragment in the reverse orientation.
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Translocation
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An exchange of chromosome parts between nonhomologous chromosomes.
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