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13 Cards in this Set
- Front
- Back
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Genome
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An organisms complete set of DNA
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Histones
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Small proteins that the DNA molecule wraps tightly around
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Trisomy 21
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Condition when a perosn has three number 21 chromosomes
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Down Syndrome
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Result of Trisomy 21
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Nondisjunction
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Pair of homologus chomosomes or sister chromatids fail to separate during meiosis
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Duplication
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When a part of a chromosome is repeated
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Deletion
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When a part of a chromosome is lost
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Inversion
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When a part of a chromosome is reversed
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Translocation
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Whne a portion of a chromosome attaches to a non-homologoues chromosome
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Transposons
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"Jumping Genes", single genes changing their position on the chromosome
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Pedigree
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Traces the occurence of a trait in a family
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Carrier
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Individual with one copy of the allele for a recessive disorder who does not show symtoms
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Genetic Counsler
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Individual trained to collect and interpret family histories of genetic disorders
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