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Genetics
Chapter 7 Vocabulary
11
Biology
Undergraduate 3
12/05/2012

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Term
Allopolyploidy
Definition
Condition of having multiple sets of chromosomes derived from two or more different species.
Term
Aneuploidy
Definition
Condition in which the chromosome number differs from the wild type by part of a chromosome set.
Term
Autopolyploidy
Definition
Condition of having multiple sets of chromosomes all derived from a single species.
Term
Chromosome mutation
Definition
An inherited large-scale change in chromosome structure or number.
Term
Deletion
Definition
Mutation in which one or more base pairs is absent.
Term
Duplication
Definition
Presence of one or more extra copies of a chromosomal region.
Term
Inversion
Definition
A chromosomal rearrangement involving removal of a segment, its rotation through 180 degrees, and its reinsertion in the same location.
Term
Karyotype
Definition
The set of chromosomes within a cell sorted into pairs and arranged from large to small.
Term
Nondisjunction
Definition
Failure of homologous chromosomes or sister chromatids to segregate at meiosis or mitosis.
Term
Polyploidy
Definition
Condition of having more than two sets of chromosomes.
Term
Translocation
Definition
Exchange of parts between nonhomologous chromosomes.
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