News tagged with genetic code
Scientists have discovered for the first time how humans – and other mammals – have evolved to have intelligence.
Neuroscience Dec 02, 2012 | 3.8 / 5 (33) | 12 |
Mayo Clinic researchers have designed a new tool for identifying protein function from genetic code. A team led by Stephen Ekker, Ph.D., succeeded in switching individual genes off and on in zebrafish, then observing embryonic ...
Genetics May 08, 2011 | 4.7 / 5 (12) | 0 |
Scientists at The Scripps Research Institute have discovered that DNA stays too tightly wound in certain brain cells of schizophrenic subjects.
Psychology & Psychiatry Dec 28, 2011 | 4.9 / 5 (11) | 3 |
Broad sweeps of the human genome have exposed genetic mutations that boost the risk of the devastating yet baffling diseases of schizophrenia and bipolar disorder, according to two studies published Sunday.
Genetics Sep 18, 2011 | 4.9 / 5 (8) | 0
You might think that the DNA you inherited is one thing that you absolutely can't do anything about, but in one sense you'd be wrong. Researchers reporting in the March issue of Cell Metabolism, a Cell Press publication, have f ...
Genetics Mar 06, 2012 | 5 / 5 (7) | 2 |
Only 10 years ago, deciphering the genetic information from one individual in a matter of weeks to find a certain disease-causing genetic mutation would have been written off as science fiction.
Genetics Feb 23, 2012 | 4.6 / 5 (7) | 0 |
Scientists have successfully sequenced the genome of a baby in the womb without tapping its protective fluid sac. This non-invasive approach to obtaining the fetal genome is reported in the June 6 issue of ...
Genetics Jun 06, 2012 | 5 / 5 (6) | 0 |
(Medical Xpress) -- Each one of us receives approximately 60 new mutations in our genome from our parents. This striking value is reported in the first-ever direct measure of new mutations coming from mother ...
Genetics Jun 12, 2011 | 4.8 / 5 (6) | 6 |
In a new study published today in the journal Nature, scientists discovered an entirely new way to change the genetic code. The findings, though early, are significant because they may ultimately help researchers alter the co ...
Medical research Jun 15, 2011 | 5 / 5 (5) | 0 |
Focusing on fine features in order to see "the big picture" seems almost counterintuitive, but that is exactly what is happening in the field of genomics. Researchers are sequencing human genomes, cataloging ...
Genetics Nov 16, 2012 | 5 / 5 (5) | 0
Researchers have discovered the mechanism behind one of the Ebola virus' most dangerous attributes: its ability to disarm the adaptive immune system.
Medical research May 02, 2013 | 5 / 5 (5) | 0 |
A healthy adult must generate as many as one hundred billion new red blood cells each day, to maintain the numbers circulating in his blood. A team of EPFL researchers has identified a key step in the process by which red ...
Medical research Mar 14, 2013 | 5 / 5 (4) | 0 |
An international team of researchers led by Imperial College London has identified six new genetic variants associated with type-2 diabetes in South Asians. The findings, published in Nature Genetics, give scientists new le ...
Genetics Aug 28, 2011 | 4.8 / 5 (4) | 0 |
Doctors have known for many years that patients with fragile X syndrome, the most common form of inherited intellectual disability, are often also diagnosed with autism. But little has been known about how the two diagnoses ...
Genetics Dec 12, 2012 | 4 / 5 (4) | 0 |
A team led by researchers at the National Institutes of Health is the first to systematically survey the landscape of the melanoma genome, the DNA code of the deadliest form of skin cancer. The researchers ...
Genetics Apr 15, 2011 | 5 / 5 (3) | 0 |
The genetic code is the set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells. The code defines a mapping between tri-nucleotide sequences, called codons, and amino acids. A triplet codon in a nucleic acid sequence usually specifies a single amino acid (though in some cases the same codon triplet in different locations can code unambiguously for two different amino acids, the correct choice at each location being determined by context). Because the vast majority of genes are encoded with exactly the same code (see the RNA codon table), this particular code is often referred to as the canonical or standard genetic code, or simply the genetic code, though in fact there are many variant codes. Thus the canonical genetic code is not universal. For example, in humans, protein synthesis in mitochondria relies on a genetic code that varies from the canonical code.
It is important to know that not all genetic information is stored using the genetic code. All organisms' DNA contain regulatory sequences, intergenic segments, and chromosomal structural areas that can contribute greatly to phenotype but operate using distinct sets of rules that may or may not be as straightforward as the codon-to-amino acid paradigm that usually underlies the genetic code (see epigenetics).
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