A.P. Biology: Chromosomes and Genes VOCAB
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10 Terms
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Duplication
the presence of a chromosome segment more than once in the same chromosome
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Deletion
when an end of a chromosome breaks off or when two simultaneous lead to the loss of a segment
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Inversion
occurs when a segment of a chromosome is turned around 180 degrees, homologous
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Translocation
the movement of a chromosomal segment from one chromosome to another, non-homologous
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Diploid number
46 chromosomes, 2N
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Haploid number
32 chromosomes, N
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Polyploids
individuals having more than two sets of chromosomes
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Triploids
3N
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Tetraploids
4N
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Nondisjunction
occurs when either members of a homologous pair or the daughter chromosomes fail to separate and go into the same daughter cell
Note 
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