Characteristics passed between generations are not decided solely by DNA, but can be brought about by other material in cells, new research shows.
Biotechnology
Apr 2, 2015
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Every cell in our body has exactly the same DNA, yet every cell is different. A cell's identity is determined by the subset of genes that it activates. But how does a cell know which genes to turn off and which to turn on? ...
Biotechnology
Mar 13, 2014
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1
(PhysOrg.com) -- On average, one hundred billion cells in the human body divide over the course of a day. Most of the time the body gets it right but sometimes, problems in cell replication can lead to abnormalities in chromosomes ...
Biochemistry
Sep 16, 2010
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Scientists at Penn State University have achieved a major milestone in the attempt to assemble, in a test tube, entire chromosomes from their component parts. The achievement reveals the process a cell uses to package the ...
Cell & Microbiology
May 19, 2011
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University of North Carolina scientists have created a new research tool, based on the fruit fly, to help crack the histone code. This research tool can be used to better understand the function of histone proteins, which ...
Cell & Microbiology
Feb 10, 2015
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It's widely accepted that molecular mechanisms mediating epigenetics include DNA methylation and histone modifications, but a team from Thomas Jefferson University has evidence to the contrary regarding the role of histone ...
Cell & Microbiology
Aug 23, 2012
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1
Researchers from the UK and Australia have uncovered a new element of the honeybee's genetic makeup, which may help to explain why bees are so sensitive to environmental changes.
Plants & Animals
Dec 11, 2012
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The function of histones -- the proteins that enable yards of DNA to be crammed into a single cell -- depends on a number of chemical tags adorning their exterior. This sophisticated chemical syntax for packaging DNA into ...
Biotechnology
Dec 16, 2010
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Histones are proteins that regulate the unwinding of DNA in the cell nucleus and the expression of genes based on chemical modifications or "marks" that are placed on their tails. Understanding how the histone "code" regulates ...
Cell & Microbiology
Aug 31, 2018
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In a novel use of gene knockout technology, researchers at the University of California, San Diego School of Medicine tested the same gene inserted into 90 different locations in a yeast chromosome – and discovered that ...
Cell & Microbiology
Jan 3, 2013
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