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Y chromatin

y chromatin

Brilliantly fluorescent body seen in cells stained with the dye quinacrine which lights up the y chromosomes most brightly.

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X chromosome inactivation

... 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 spermatogenesis but to my knowledge this is not considered as "X chromosome inactivation". ...

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by cathbr
Thu Jul 18, 2013 3:56 pm
Forum: Molecular Biology
Topic: X chromosome inactivation
Replies: 1
Views: 1517

cell structure

Not exactly 1 chromatin fibre equals 1 chromosome.

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by understandbiology
Thu Jun 27, 2013 12:39 pm
Forum: Cell Biology
Topic: cell structure
Replies: 3
Views: 2811

Apoptosis in the substantia nigra

... nigra in four normal aged subjects. Morphological characteristics of apoptosis, such as contact loss with surrounding tissues, cell shrinkage and chromatin condensation, were found in 2% of the total number of melanized neurons analyzed. Although endoplasmic reticulum appeared normal, mitochrondria ...

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by MarkHolland
Sat Mar 30, 2013 3:03 pm
Forum: Cell Biology
Topic: Apoptosis in the substantia nigra
Replies: 1
Views: 2333

Log paper

Hi!! I just finished a chromatin practical and I have to create on a log paper the relationship between the molecular weight of the histons and their travel distance from the SDS-Page. I am quite confused about it. Do I have to plot ...

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by simina
Wed Feb 13, 2013 4:20 pm
Forum: General Discussion
Topic: Log paper
Replies: 2
Views: 1158

Re: Animal cell nucleus shape changes

... for a while. Transcription occurs in the nucleus, but then the mRNA is moved out of the nucleus to the cytosol where translation takes place. Chromatin is an important part of the contents of the nucleus, but other structures (for instance splicosomes) are also present and vital for gene expression. ...

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by jonmoulton
Fri Nov 16, 2012 4:03 pm
Forum: Cell Biology
Topic: Animal cell nucleus shape changes
Replies: 7
Views: 9274
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