News tagged with genetic
New research suggests that a compound abundant in the Mediterranean diet takes away cancer cells' "superpower" to escape death. By altering a very specific step in gene regulation, this compound essentially re-educates cancer ...
Cancer 13 hours ago | 4.8 / 5 (12) | 2 |
A new study looking at the genomes of more than 13,000 men identified four new genetic variants associated with an increased risk of testicular cancer, the most commonly diagnosed type in young men today. The findings from ...
Genetics May 12, 2013 | 5 / 5 (1) | 0 |
(Medical Xpress)—Facioscapulohumeral muscular dystrophy (FSHD) is a genetic disorder that causes the muscles of the upper body to waste away. It is unusual in that symptoms do not usually appear until sufferers are in their ...
Genetics May 06, 2013 | 4.8 / 5 (4) | 3 |
A new study led by researchers from Harvard School of Public Health (HSPH) and the Wellcome Trust Sanger Institute in the UK has, for the first time, used genome sequencing technology to track the changes in a bacterial population ...
Genetics May 05, 2013 | not rated yet | 1 |
(Medical Xpress)—Recent scientific papers from China suggest a vigilant watch should be kept on the development of bird flu viruses, as a new strain has been identified and previously known viruses have ...
Diseases, Conditions, Syndromes May 03, 2013 | 3 / 5 (2) | 1 |
A research team led by a Howard Hughes Medical Institute investigator at the University of California, San Francisco has identified a genetic mutation that is strongly associated with a typical form of migraine.
Genetics May 01, 2013 | 4.5 / 5 (2) | 1 |
Solving the structure of a critical human molecule involved in cancer, scientists at The Scripps Research Institute (TSRI) have found what they call a good example of structural conservation—dissimilar ...
Medical research May 01, 2013 | not rated yet | 0 |
Researchers at the Harvard Stem Cell Institute (HSCI) have discovered a hormone that holds promise for a dramatically more effective treatment of type 2 diabetes, a metabolic illness afflicting an estimated ...
Medical research Apr 25, 2013 | 4.9 / 5 (12) | 0 |
Scientists from the Icahn School of Medicine at Mount Sinai, in collaboration with researchers from Icelandic Heart Association, Sage Bionetworks, and other institutions, have discovered that a network of genes involved in ...
Alzheimer's disease & dementia Apr 25, 2013 | 4.6 / 5 (5) | 0 |
Large-scale genetic study defines relationship between primary sclerosing cholangitis and other autoimmune diseases
For the first time, scientists show that a leading cause of liver transplant, primary sclerosing cholangitis (PSC), is a distinct disease from inflammatory bowel disease, opening up new avenues for specific PSC treatments.
Genetics Apr 21, 2013 | not rated yet | 0 |
Informed consent is the backbone of patient care. Genetic testing has long required patient consent and patients have had a "right not to know" the results. However, as 21st century medicine now begins to use the tools of ...
Genetics May 16, 2013 | 5 / 5 (1) | 3 |
The relationship between the heritable risk for schizophrenia and low intelligence (IQ) has not been clear. Schizophrenia is commonly associated with cognitive impairments that may cause functional disability. There are clues ...
Psychology & Psychiatry May 16, 2013 | 4.5 / 5 (2) | 0 |
(HealthDay)—Weight gain in men and women is predicted by two different genetic variations—so-called polymorphisms, according to a new study from the Netherlands.
Overweight and Obesity May 15, 2013 | 5 / 5 (1) | 0 |
People who have skin cancer may be less likely to develop Alzheimer's disease, according to new research published in the May 15, 2013, online issue of Neurology®, the medical journal of the American Academy of Neurology. The li ...
Alzheimer's disease & dementia May 15, 2013 | 5 / 5 (1) | 0 |
Scientists at the Texas Biomedical Research Institute in San Antonio have identified four genes in baboons that influence levels of "bad" cholesterol. This discovery could lead to the development of new drugs to reduce the ...
Medical research May 15, 2013 | 4.5 / 5 (2) | 0 |
Genetics (from Ancient Greek γενετικός genetikos, “genitive” and that from γένεσις genesis, “origin”), a discipline of biology, is the science of heredity and variation in living organisms. The fact that living things inherit traits from their parents has been used since prehistoric times to improve crop plants and animals through selective breeding. However, the modern science of genetics, which seeks to understand the process of inheritance, only began with the work of Gregor Mendel in the mid-nineteenth century. Although he did not know the physical basis for heredity, Mendel observed that organisms inherit traits via discrete units of inheritance, which are now called genes.
Genes correspond to regions within DNA, a molecule composed of a chain of four different types of nucleotides—the sequence of these nucleotides is the genetic information organisms inherit. DNA naturally occurs in a double stranded form, with nucleotides on each strand complementary to each other. Each strand can act as a template for creating a new partner strand—this is the physical method for making copies of genes that can be inherited.
The sequence of nucleotides in a gene is translated by cells to produce a chain of amino acids, creating proteins—the order of amino acids in a protein corresponds to the order of nucleotides in the gene. This relationship between nucleotide sequence and amino acid sequence is known as the genetic code. The amino acids in a protein determine how it folds into a three-dimensional shape; this structure is, in turn, responsible for the protein's function. Proteins carry out almost all the functions needed for cells to live. A change to the DNA in a gene can change a protein's amino acids, changing its shape and function: this can have a dramatic effect in the cell and on the organism as a whole. Two additional factors that can change the shape of the protein are pH and temperature.
Although genetics plays a large role in the appearance and behavior of organisms, it is the combination of genetics with what an organism experiences that determines the ultimate outcome. For example, while genes play a role in determining an organism's size, the nutrition and other conditions it experiences after inception also have a large effect.
For more information about Genetics, read the full article at
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