Tag: "inheritance" at biology news
New study will tackle three major killer diseases
...ncrease our understanding of the relative roles of inheritance
and the environment in causing these diseases, and will include a search for any genes that predispose strongly to illness. The volunteers taking part in the project will have the benefit of a health check and will also be contributing to improving t...
Single genetic defect links many risk factors for heart disease and stroke
...these traits has all of the others. The pattern of inheritance
is complicated, and there hasn't been a clear understanding of what's driving this relationship." Various combinations of these abnormalities affect up to a quarter of the U. S. population, and they are contributing to a public health epidemic of he...
For yeast, a DNA break ensures sex switch for a grandchild
...lications for how DNA can be marked for asymmetric inheritance
that can affect cell destiny. ...
A genetic difference at the opiate receptor gene affects a person's response to alcohol
...esearch at the Providence VA Medical Center. "The inheritance
of alcoholism is complex, but there are suggestion... to alcohol as well as tobacco and marijuana. "The inheritance
of alcoholism is complex," said Swift, "and there are certainly more genes, still undiscovered, that...
New method simplifies search for genetic changes associated with disease
...ween family or population-based studies of disease inheritance
patterns and identification of genetic variations ...ss pieces of DNA 700 to 1,000 base pairs long, but inheritance
studies can leave researchers searching for changes in segments of DNA hundreds of times longer. Sci...
Novel asthma study shows multiple genetic input required; single-gene solution shot down
...cher, stated. "We have now shown that the genetic inheritance
of wheezing, one component of asthma, is extremely...tions, they found "no apparent association between inheritance
of any single locus with elevated nave AHR in the phenotypically derived recombinant congenic line."...
Map of human genetic variation across populations may promise improved disease treatments
... editor for Science , was a phenomenon of genetic inheritance
called linkage disequilibrium, which is related to the distance between two variants or alleles of one gene in a single person. The further the distance between two gene variants, Jasny explained, the greater the odds that one variant may be recombin...
Plants defy Mendel's inheritance laws, may prompt textbook changes
WEST LAFAYETTE, Ind. - Contrary to inheritance
laws the scientific world has accepted for more th...covery flies in the face of the scientific laws of inheritance
first described by Gregor Mendel in the mid-1800s and still taught in classrooms around the world to...
Jeffrey Friedman, discoverer of leptin, receives Gairdner, Passano awards
...sociated with Syndrome X. By analyzing the genetic inheritance
patterns of the entire Kosraean population, Friedman, Breslow and Stoffel hope to solve the ongoing mystery of why some people develop these diseases, while others with the same lifestyle do not. War on obesity, not the obese Friedman recently ha...
Mitochondrial DNA variants linked to renal, prostate cancer
...and-one-half times the risk for renal cancer. "The inheritance
of mitochondrial haplotype is important in cancer ...risk of prostate and renal cancer. "There is also inheritance
of missense mutations in at least one mitochondrial gene that is important in prostate cancer," Petr...
Protein helps regulate the genes of embryonic stem cells
...ated mode of inheritance: epigenetics. "Epigenetic inheritance
is heritable information passed down through generations of cells that is not encoded by the DNA sequence," said Nathan D. Montgomery, a graduate student in Magnuson's laboratory and first author of the paper. This information is in the form of chemi...
Washington State University study points to role of toxins in inherited disease
...mpact of so-called epigenetic changes. Epigenetic inheritance
refers to the transmission from parent to offspring of biological information that is not encoded in the DNA sequence. Instead, the information stems from small chemicals, such as methyl groups, that become attached to the DNA. In epigenetic transmis...
Imprinting disorders and ART world's largest study results are reassuring
...rnal or paternal deletion on a chromosome or from inheritance
of both chromosomes of a pair from one parent. "It has been known for some time that BWS, for example, was associated with ART", said Dr. Sutcliffe, "and we set out to look at the association of all four disorders and assisted conception." Dr. Sutc...
Preventing muscle atrophy
...l myopathies, which do not follow simple Mendelian inheritance
or become evident only late in life, may require two initiating events: a decrease in muscle activity, due to trauma, aging, or immobilization, as well as a mutation in Runx1 or its target genes."...
Gene's mutations found to cause life-threatening aortic disease
...ection. "We know there are more genes involved in inheritance
of aortic disease," Milewicz said. Milewicz's team continues to scrutinize a stretch of chromosome 5 to pinpoint another genetic variation that they earlier mapped to that area of the genome. Researchers elsewhere have mapped two other genetic vari...
Dec. 12 meeting on lateral gene transfer
...f life on Earth as branching out like a tree, with inheritance
and diversification of genetic elements occurring in a linear fashion. However, as the genomes of many microbes and animals have been sequenced, scientists have discovered that biodiversity also appears to result from lateral transfers of heritable e...
Animal model of Parkinson's disease reveals striking sensitivity to common environmental toxins
...isease occurs both sporadically and as a result of inheritance
of single gene mutations. One of the most common neurodegenerative disorders, it is associated with the progressive and selective loss of a specific population of neurons in the brain, the dopaminergic neurons of the substantia nigra pars compacta . ...
Genetic testing helps physicians zero in on eye disease
...is is also useful in analyzing complex patterns of inheritance
and for understanding how causative genes might interact with each other." RP is a group of diseases, affecting one in every 3,500 individuals, in which retinal degeneration leads to blindness or severe vision loss. Among the outward signs and sym...
Transmission of tuberculosis is linked to historical patterns of human migration
...is dissemination has reflected the unidirectional inheritance
of the paternally transmitted human Y chromosome. To test this hypothesis, the authors compared the genetic profiles of a common form of M. tuberculosis , called the Beijing genotype, with known patterns of prehistoric and recent human migrations, ...
Collaborations yield new discoveries in psychiatric genetics
...ceptibility to psychiatric disorders, but based on inheritance
patterns of these diseases seen in families, the genetic component appears to be quite strong. The inheritance
picture, however, is far from clear. It is not like the simple, one-gene models for eye color or blo...
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