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Rotation squares
Rotation squares

... A scientist investigated the response of plants to light. He put one group in the dark, one group exposed to light from one side and one group in even illumination. The atmosphere contained radioactive carbon dioxide. The scientist measured the amount of radioactive auxin in the area below the shoo ...
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... In  the  end,  the  two  daughter  cells  would  have  uneven  amounts  of  chromosomes.  For  example,   one  cell  would  have  too  many  and  the  other  would  not  have  enough   2.   What  is  this  case  called?   Aneuploidy ...
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... The concept of loss of heterozygosity (LOH) is explained in the preceding slide. In general, cells containing a predisposing loss-of-function mutation in one copy of a tumor suppressor gene are normal until a mutation inactivates the wild-type copy of the gene. Cancer cells commonly exhibit LOH in o ...
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Leukaemia Section t(20;21)(q13;q22) Atlas of Genetics and Cytogenetics in Oncology and Haematology

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Polycomb Group Proteins and Cancer

The Polycomb-group proteins (PcGs) are a family of proteins that use epigenetic mechanisms to maintain or repress expression of their target genes. They were originally discovered in Drosophila (fruit flies), though they've been shown to be conserved in many species due to their vital roles in embryonic development. These proteins' ability to alter gene expression has made them targets of investigation for research groups seeking to understand disease pathology and oncology.
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