genetic 2 10

Tag: "genetic" at biology news

Sugar beet virus mutation requires Texas touch

...more experience than anyone else," he said. Strong genetic resistance to rhizomania was bred into sugar beet varieties and until 2002, that was effective, Rush said. But with only one gene selected for resistance, the plant virus mutated and overcame the resistant gene. "We're going in now and looking at th...

Microarrays as phenotype

...specific nucleic acid is present. Genotype is the genetic fingerprint of a particular cell. Phenotype is the outward manifestation of the genotype. For example, a person may have genes for eye color. That is that individual's genotype. Blue eyes is the phenotype. The microarray data Shaulsky and his collab...

Where bacteria get their genes

Bacteria acquired up to 90 percent of their genetic material from distantly related bacteria species, ...bacteria, because their genomes represent a mix of genetic material from their parental cells and from other species of bacteria. Ochman and his colleagues' w...

NHGRI targets 12 more organisms for genome sequencing

...rmoset (Callithrix jacchus); and identification of genetic variations (in the form of single nucleotide polym...ry rats. SNPs can be used as markers to zero in on genetic variations that may affect an individual's risk of developing common, complex illnesses such as hear...

Remote control flies? Fly behavior controlled by laser light

...beat their wings, and fly on command by triggering genetic "remote controls" that the scientists designed and installed in the insects' central nervous systems, according to a new report in the 8 April issue of the journal Cell. Susana Lima and Gero Miesenböck hope that the remote control system will provid...

Purdue researchers use enzyme to clip 'DNA wires'

...rous restriction enzymes that are used in standard genetic engineering techniques to snip DNA so that scientists can alter the genetic structures of organisms like bacteria. DNA molecules contain "bases" called guanine, adenine, thymi...

Human Eggs Can Develop From Ovarian Surface Cells In Vitro

...esh eggs. This may prevent the occurrence of fetal genetic alterations, which are often associated with an advanced maternal age. In addition, a colonization of premenopausal ovaries with younger oocyte and granulosa stem cells may establish a new cohort of primary follicles. This may result in a 10- to 12-y...

An (ecological) origin of species for tropical reef fish

... similar abilities to disperse, I expected to find genetic differences that corresponded to the barrier in al...from three locations in Brazil showed much clearer genetic differences within, rather than across, the two sides of the Amazon barrier. Genetically similar fis...

Researchers Find New Technique To Identify Fetal Genetic Material From Amniotic Fluid

...tomic evaluation by fetal sonography. In addition, genetic analysis can be performed on amniotic fluid components ? They add that the "cell-free component of the amniotic fluid is discarded after these analyses and is therefore available for research and future clinical applications." Paige B. Larrabee, M.D...

Chemical Engineer Kao Explores Antibiotic Synthesis With DNA Chips

...ranged on a wafer the size of a postage stamp. The genetic sequence of the DNA tethered to the chip is known....s of messenger RNA--that's RNA that translates the genetic information of DNA into proteins. Accordingly, one can go backwards and make DNA copies of all RNA t...

Embryonic Stem Cells Treated With Growth Factor Reverse Hemophilia In Mice: UNC Researchers

...have implications for the treatment of liver-based genetic defects such as hemophilia A and B in humans. Mou...e allows for the development of mice with specific genetic mutations that mimic human illnesses such as hemophilia. In 2001, Smithies received the Albert Laske...

Affymetrix and bioMerieux Extend Their Agreement on GeneChip(R) Technology to Breast Cancer Diagnostics

...r diagnostics, from single to multiple and complex genetic targets, requiring the use of microarrays. Our extended agreement with Affymetrix broadens our rights beyond infectious diseases, food and water testing. The potential for microarrays in cancer application will be vast, ranging from diagnosis to pers...

Researchers test new therapy for advanced melanoma

...he tumor cells. The tumor cells used the plasmid's genetic instructions to make proteins. These proteins signaled the immune system to recognize the melanoma tumors as abnormal and attack. Eighty percent of the mice were cured with this therapy -- their tumors disappeared and the treated animals remained di...

Pair of cancer genes found to drive both cell migration and division

...rmal cell prepares to divide, it first doubles its genetic material, and then creates a "furrow" down the mid...ecame "stuck" and accumulated many copies of their genetic material because they could do everything required for cell division except complete the split, the ...

Virologists make major step towards understanding the process of HIV infection

...the object of interest, such as by introducing the genetic code of green fluorescent protein (GFP) into its genetic information. There the marker protein will be produced by the cellular machinery and appended to the...

New Species of Coral Discovered Off Southern California

...the object of interest, such as by introducing the genetic code of green fluorescent protein (GFP) into its genetic information. There the marker protein will be produced by the cellular machinery and appended to the...

Newly discovered protein an important tool for sleeping sickness research

...s year. Because the trypanosome has an exceptional genetic strategy for evading the human immune system and r...a time while the others are somehow silenced. This genetic trick, called antigenic variation, has severely limited sleeping sickness treatment options and esse...

U. Iowa researchers improve Huntington's disease symptoms in mice

...Viral vectors (stripped-down viruses) carrying the genetic instructions to make a RNA interference molecule were injected into the brains of genetically engineered mice before the disease symptoms appeared. The treated mice showed nearly normal movement, and the characteristic neurological damage also was si...

Breakthrough System for Understanding Ocean Plant Life Announced

...s year. Because the trypanosome has an exceptional genetic strategy for evading the human immune system and r...a time while the others are somehow silenced. This genetic trick, called antigenic variation, has severely limited sleeping sickness treatment options and esse...

Researchers Identify Cause of Early Bird Sleep Disorder

...the gene works in different settings, in different genetic backgrounds, he said. Experiments can be done in mice and flies, with results applying to humans, while the studies of humans can inform what's being seen in the flies and mice. In addition, "these results show that the gene is a central component o...

1 2 3 4 5 6 7 8 9 10