Dictionary » R » Repression



The inhibition of a gene's expression, this is typically caused by the change in the activity of a regulatory protein. The act of repressing; control by holding down; his goal was the repression of insolence.(psychiatry) the classical defense mechanism that protects you from impulses or ideas that would cause anxiety by preventing them from becoming conscious.A type of state a gene can exist in when repressed by a repressor molecule rendering the gene inactive.

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X chromosome inactivation

... contain only one X chromosome and do therefore not have X chromosome inactivation. X chromosome inactivation is happening through transcriptional repression of the X chromosome. The X chromosome of male germ cells is in a condensed chromatin state and is transcriptionally repressed during early ...

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by cathbr
Thu Jul 18, 2013 3:56 pm
Forum: Molecular Biology
Topic: X chromosome inactivation
Replies: 1
Views: 1095

Bio Research Paper Writing

... that are responsible for transforming B cells into lymphoblastoid cells; in individuals with EBV, these oncogenes are upregulated resulting in repression of the pathways responsible for senescence like p16mk4A and pl4ARF (EBNA38-Deficent-Promotes-Cancer np). Recent studies are confirming confirming ...

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by NathanielZhu
Thu Apr 04, 2013 2:25 am
Forum: General Discussion
Topic: Bio Research Paper Writing
Replies: 1
Views: 7989

Final exam essay question

... point of view would include DNA, but also as a epigeneticist, I would add in chromatin architecture just as important for expression and repression of that DNA.

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by kolean
Mon Aug 02, 2010 3:17 pm
Forum: Cell Biology
Topic: Final exam essay question
Replies: 5
Views: 3022

Replacing the genetic material

... transcript (possibly an antisense one - then you get into RNAi stuff, which would possibly mess up your sense transcript - its degradation or just repression of expression). Though ATG doesn't guarantee that the polymerase will 'read' that DNA, there is alittle more that the polymerase needs to ...

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by kolean
Sun Jul 04, 2010 7:53 pm
Forum: Genetics
Topic: Replacing the genetic material
Replies: 9
Views: 4575

Re: RNA interference

... paired to the mRNA (just the seed part), and this translates into just binding up the mRNA and not cleaving it right away (translational repression). Now the short interferring RNAs (siRNAs) are not processed by Drosha/Pasha(DGCR8). These are not hairpin making genes. They are from inverted ...

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by kolean
Mon Apr 12, 2010 2:14 am
Forum: Molecular Biology
Topic: RNA interference
Replies: 3
Views: 3637
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