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Sunday, April 15, 2012

ScienceDaily: Top Environment News

ScienceDaily: Top Environment News


Scientists discover tool that uncrosses chromosomes

Posted: 12 Apr 2012 09:13 AM PDT

Researchers have discovered a key tool that helps sperm and eggs develop exactly 23 chromosomes each. The work, which could lead to insights into fertility, spontaneous miscarriages, cancer and developmental disorders.

Study resolves debate on human cell shut-down process

Posted: 12 Apr 2012 07:57 AM PDT

Researchers have resolved the debate over the mechanisms involved in the shut-down process during cell division in the body.

Chromosomes organize into 'yarns': May explain why DNA mutations can affect genes located thousands of base pairs away

Posted: 11 Apr 2012 11:43 AM PDT

A new layer in the complex organization of chromosomes has been discovered. Scientists have now shown that chromosomes fold in a series of contiguous "yarns" that harbor groups of genes and regulatory elements, bringing them in contact with each other and allowing them to work in a coordinated manner during development.

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