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Section: Genetics » Numerical Changes in Chromosomes
 
 
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  Nullisomy
 
     
 
Content
⇒ Numerical Changes in Chromosomes
⇒ Aneuploidy 
⇒ Monosomy
⇒ Nullisomy
⇒ Trisomy
⇒ Tetrasomy
⇒ Euploidy 
⇒ Monoploidy and haploidy
⇒ Polyploidy

Nullisomics are those individuals, which lack a single pair of homologous chromosomes, so that the chromosome formula would be 2n - 2 and not 2n - 1 - 1, which would mean a double monosomic. Sears had isolated all the 21 nullisomics in wheat.


 
     






     
     
 
 
     
 
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