Cancer cells are resourceful survivors with plenty of tricks for staying alive. Researchers have uncovered one of these stratagems, showing how cells lacking the tumor suppressor BRCA1 can resume one form of DNA repair, sparing ...
Cell & Microbiology
Jan 21, 2013
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A simple, reversible chemical treatment can segregate X-bearing sperm from Y-bearing sperm, allowing dramatic alteration of the normal 50/50 male/female offspring ratio, according to a new study by Masayuki Shimada and colleagues ...
Cell & Microbiology
Aug 13, 2019
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206
Is there value to sex? For higher organisms, absolutely. Animals, plants and fungi that reproduce only by cloning are scarce as hen's teeth, suggesting the gene shuffling of sex pays handsome dividends.
Biotechnology
Nov 26, 2010
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Each baby girl starts out with two X chromosomes, but to be healthy she only needs the genes from one. The extra X chromosome gets trussed up and shut down in the earliest stages of development.
Cell & Microbiology
May 13, 2015
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Using three dimensional modeling techniques, advanced computer simulation and next generation sequencing technology, faculty at the University of Massachusetts Medical School (UMMS) and the Massachusetts Institute of Technology ...
Cell & Microbiology
Nov 7, 2013
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A puzzle that has baffled scientists for centuries - why some birds appear to be male on one side of the body and female on the other - has been solved by researchers.
Plants & Animals
Mar 10, 2010
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(PhysOrg.com) -- Human sperm have been created using embryonic stem cells for the first time in a scientific development which will lead researchers to a better understanding of the causes of infertility.
Biotechnology
Jul 8, 2009
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1
Scientists have long known that healthy cells looked and behaved differently from cancer cells. For instance, the nuclei of healthy cells -- the inner part of the cells where the chromosomes are stored -- tend to have a rounder ...
General Physics
Jul 6, 2011
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A genetic mutation that occurred thousands of years ago might be the answer to how early humans were able to move from central Africa and across the continent in what has been called "the great expansion," according to new ...
Biotechnology
Sep 19, 2012
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With the completion of the sequencing and analysis of the gibbon genome, scientists now know more about why this small ape has a rapid rate of chromosomal rearrangements, providing information that broadens understanding ...
Biotechnology
Sep 10, 2014
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