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Genetics
Revision flash cards for AS 2.3
8
Biology
12th Grade
08/30/2010

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Term
Allele
Definition
Alternative forms of a gene
Term
Asexual
Definition
Form of producing offspring without involving sex producing identical offspring
Term
Centromere
Definition
Area where chromatids remain joined until
nuclear division
Term
Centriole
Definition
Involved in cell division, in animals it produces spindle fibres
Term
Chiasmata
Definition
The points on chromatids where the homologous chromosomes cross
Term
Chromatids
Definition
The two strands of a replicated chromosome
Term
Chromosomes
Definition
Thread-like structure within a cell nucleus made of DNA that contains genes
Term
Crossing-over
Definition
Exchanging of parts of chromatids during
meiosis
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