Genome editing using CRISPR/Cas system has enabled direct modification of the mouse genome in fertilized mouse eggs, leading to rapid, convenient, and efficient one-step production of knockout mice without embryonic stem ...
Biotechnology
May 1, 2015
0
35
Changes in a few small molecules involved in a cell's metabolism seem to indicate whether a restricted "life extension" diet will actually extend, shorten, or have no effect on lifespan, a study of fruit flies has found.
Plants & Animals
Jul 9, 2020
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94
The vast majority of vertebrate species living today, including humans, belong to the jawed vertebrate group. The development of articulating jaws during vertebrate evolution was one of the most significant evolutionary transitions ...
Evolution
Nov 25, 2022
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301
Inserting or tweaking genes in plants is more art than science, but a new technique developed by University of California, Berkeley, scientists could make genetically engineering any type of plant—in particular, gene editing ...
Bio & Medicine
Feb 25, 2019
0
203
Every cell in an organism's body has the same copy of DNA, yet different cells do different things; for example, some function as brain cells, while others form muscle tissue. How can the same DNA make different things happen? ...
Biotechnology
Jul 10, 2013
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0
Messenger RNA molecules contain genetic information and thus control the synthesis of proteins in living cells. Biochemists at the University of Bayreuth and the University of Bonn have now discovered a way to regulate this ...
Biochemistry
Aug 26, 2019
0
243
Pioneering new research from a team of Indiana University Bloomington biologists has shown for the first time that a protein which has been long known to be critical for the initiation of protein synthesis in all organisms ...
Cell & Microbiology
Sep 18, 2013
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0
One of the big mysteries in biology is why cells age. Now scientists at the Salk Institute for Biological Studies report that they have discovered a weakness in a component of brain cells that may explain how the aging process ...
Cell & Microbiology
Feb 3, 2012
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0
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
0
1
One of the most hotly contested issues in biology, or at least in mitochondrial biology, is determining which proteins can get into mitochondria. Having this kind of access essentially means a protein maintains a residence ...
