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Identical in Biological News

Is this the beginning of the end of plant breeding?

... because instead of producing two genetically identical daughter cells, it produces four cells each ... symmetryand these then pass into two genetically identical daughter cells. In meiosis, there are two lining ... produce pollen and eggs that are genetically identical to their parent. If MiMe eggs are self-fertilized ...

Findings show insulin -- not genes -- linked to obesity

... could cause obesity, finding that genetically identical cells store widely differing amounts of fat ... varied capability to store fat among genetically identical cells is a well-observed but poorly understood ... in how much fat is stored in cells with identical genes, but no one really knows why. Our findings ...

For cancer cells, genetics alone is poor indicator for drug response

... vary from cell to cell, even among cells that are identical genetic twins. What's more, these protein levels ... that even though these cells were genetically identical the same cell in the same tissue doing the same ... causes these protein levels to vary between identical cells, the researchers cited a simple ...

Researchers take first look at the genetic dynamics of inbreeding depression

... male and female fruit flies that were genetically identical to one another, researchers at the University of ... experiment in six lines of fruit flies that were identical to one another except for the composition of one ... who led the study. Of particular note were identical changes in the expression of 46 genes in all ...

Political participation is partially rooted in genetic inheritance

... records in Los Angeles matched to a registry of identical and non-identical twins. These comparisons show clearly that identical twins, who share 100 per cent of their genes, are ... behavior is heritable. For example, among identical twins, the researchers conclude that 72 per cent ...

BBVA Foundation international study on attitudes to stem cell research

... few-day-old human embryo is that it is close or identical to that of a human being. The strictly biological ... of the embryo and those seeing it as close or identical to a human being. This view of the embryo as close or identical to a human is most frequently expressed in ...

Identical twins not as identical as believed

... Contrary to our previous beliefs, identical twins are not genetically identical. This ... new diagnostic methods. How can it be that one identical twin might develop Parkinsons disease, for ... picture. Even though the genome is virtually identical ...

'Telepathic' genes recognize similarities in each other

... by two members of this team, that long pieces of identical double-stranded DNA could identify each other ... pure solution. They found that DNA molecules with identical patterns of chemical bases were approximately ... significance of the teams results: Seeing these identical DNA molecules seeking each other out in a crowd, ...

Plant geneticists find veritas in vino

... sequenced and, remarkably, this was found to be identical to an independently determined sequence from a ... filled with hundreds of thousands of genetically identical clones. This leaves grapes highly susceptible to ... and micropropogated to produce hundreds of identical clones. With the sequencing of its relatively ...

Feinstein researchers develop new genetic method and identify novel genes for schizophrenia

... from both parents. If a person inherits identical copies of these markers from each parent, his or ... a large role in triggering the disease when two identical variants are inherited. Four of these regions ... And while no one in the healthy group had identical chunks of chromosomes in four or more of these ...

Animal food allergens unmasked

... Research. Proteins in horse milk are up to 66% identical to human milk proteins, while known allergens from cows and goats are all less than 53% identical to corresponding human proteins. Overall we ... only an animal food protein that is less than 54% identical to a human equivalent could become allergenic. ...

Clones on task serve greater good, evolutionary study shows

... the creatures that produce scads of genetically identical offspring like microbes, plants or water fleas. ... how the greater good of a genetic pool of identical organisms is affected when a few individuals ... identical. Yet, just like human twins, these identical plants still have subtle individual differences. ...

Jet-propelled imaging for an ultrafast light source

... a virus is often packed differently in each virus, and cells are not identical at the molecular level, so cannot be studied in 3-D by this method. Besides identical particles, successful data-merging also depends partly on knowing how the ...

Researchers observe single protein dimers wavering between two symmetrically opposed structures

... of Ohio State University, has shown that a protein dimer made up of two identical parts can actually twist itself so that one copy of the protein is turned ... produced within the bacteria. This small "homodimer" is made up of two identical hairpin coils of amino acids, and has often been used as a model system to ...

They are young and need the job: A second chance for dangerous T-cells

... T-cells are very readily reeducated into regulatory T-cells. Under identical conditions, however, older T-cells become fully activated and can cause ... T-cells, while older T-cells are largely 'resistant to reeducation' under identical conditions. "It is important for us to understand this 'educability' at a ...

Studies shed light on collapse of coral reefs

... might help." Corals are tiny animals, polyps that exist as genetically identical individuals, and can eat, defend themselves and kill plankton for food. In ... A gene that controls skeletal development in humans, for instance, is the identical gene in corals that helps it develop its external skeleton conserved in ...

Findings uncover new details about mysterious virus

... thinking the object has icosahedral symmetry, then you assume there are 60 identical pieces, and that influences how you reconstruct the virus's structure," ... has a roughly spherical shape containing 20 triangular facets and 60 identical subunits. Like an icosahedron, the mimivirus capsid also has 20 facets. ...

Animals that seem identical may be completely different species

... Animals that seem identical may belong to completely different species. This is the conclusion of ... doctoral student Daniel Gustavsson and their American colleague, are identical in appearance. From the very first time that they were described, they ...

Why 'lazy Susan' has a weak heart

... function. Some 70 percent of the genes of zebrafish and humans are identical Can these research results be transferred from zebrafish to humans? In ... in patients' genes. Since approximately 70 percent of human genes are identical with those of zebrafish, the researchers are confident that a Serine 195 ...

Scientists shed light on evolution of gene regulation

... percent of the GATA1-bound DNA sequences from the mouse were present in an identical form in other mammals. "We were surprised that so few of these ... could be involved in gene regulation in the mouse, are not present in the identical form in most other vertebrates," said Hardison. DNA sequences that are ...

Origin of root offshoots revealed

... division. In contrast to the usual cell division, which gives rise to two identical cells, asymmetric cell division produces two different cells: a stem cell that is identical to the original cell, and a cell that is ready to become a specialized ...

Circadian clock may be critical for remembering what you learn, Stanford researchers say

... environment. Using a box roughly 2 feet square, the researchers put two identical objects in adjacent corners, such as two saltshakers or two shot glasses. ... the hamster spends approximately equal amounts of time on each of the two identical objects. After 5 minutes, the hamster is removed from the box, and one ...

The epigenetics of increasing weight through the generations

... studied the effect of maternal obesity in three generations of genetically identical mice, all with the same genetic tendency to overeat. One group of mice ... that silences genes. "We wanted to know if, even among genetically identical mice, maternal obesity would promote obesity in her offspring, and if the ...

Statistical tool could explain gene study variations

... gene would theoretically be copied in the genetics of every member of an identical population. For instance, two people with almost identical sets of chromosomes could differ in a very small way by one structural ...

Mouse can do without man's most treasured genes

... in medical research, thanks to genomes that are 85 percent identical. But identical genes may behave differently in mouse and man, a study by University of ... They then homed in on 120 essential human genes for which the mouse has an identical counterpart that also has been studied. Next they consulted a database ...

ASU researcher may have discovered key to life before its origin on Earth

... that contain among a variety of compounds, amino acids that have identical counterparts in terrestrial biomolecules. These meteorites are fragments ... reflection of the other. They are different, cannot be superimposed, yet identical in their parts. When scientists synthesize these molecules in the ...

Iowa State researchers help piece together the corn genome's first draft

... In addition, they identified almost 100 genes which have nearly identical copies in the genome. Schnable said these nearly identical paralogs may have played important roles during the evolution and ...

Is political orientation transmitted genetically?

... supplemented it with findings from twins in Australia. Alford found that identical twins were more likely to agree on political issues than were fraternal ... On the issue of property taxes, for example, an astounding four-fifths of identical twins shared the same opinion, while only two-thirds of fraternal twins ...

Oosight microscope enables embryonic stem cell breakthrough

... stem cells is a potential way to make custom tissues that are genetically identical to a patient, which would avoid rejection by the patients immune system. ... the researchers obtained two viable stem cell lines that are genetically identical to the adult male monkey. We are thrilled that the Oosight worked for ...

SLIM Search Launches Academic Pricing Program

... it. When the chunking conditions are set the same, the sensitivity will be identical between SLIM Search and any method it is compared with, but SLIM Search is ... (the alignment phase from the NCBI Blast package). The final result can be identical to whatever is desired, simply by selecting a different alignment phase. ...

Breast cancer research and inkjet tissue printing get NSF boost

... at Clemson, is based on inkjet printing and will allow the creation of identical tissue samples that can be used to build cause and effect models. We will expose these identical tissue models to different environmental conditions to better understand ...

Study identifies pathway required for normal reproductive development

... members from the same family in Portugal two brothers and a sister had identical defects in both copies of the PROK2 gene. Further study of this family ... in which different family members exhibit both syndromes yet harbor the identical mutation. So, it looks like additional gene defects or environmental cues ...

Ultraconserved elements in the genome: Are they indispensable?

... element number 467 (uc467) has 731 base pairs of sequence that are identical among human, mouse, and rat; it is one of the longest of all ... along separate paths. Much more plausible is the assumption that these identical DNA sequences persist because nucleotide substitutions in them would ...

UCSF researchers identify new drug target for Kaposi's sarcoma

... effective. Some viral enzymes known as proteases, however, including those for HIV and the herpes virus family, take the form of a dimer, or two identical halves much like a fully opened clamshell in their most stable state. Those proteases play an essential role in making the virus infectious, but ...

Researchers develop 'brain-reading' methods

... to predict the specific mental function of the participants and what information they would report back. "It's like looking at two patterns of identical flower arrangements," says Hanson. "They each may have the same flowers but they will not be arranged exactly in the same manner, consequently ...

Scientists discover gene mutation responsible for hereditary neuroendocrine tumor

... of another protein called Sdh1 that is also part of the SDH complex. Studies in Humans "The amino acid sequence of yeast Sdh5 is 44 percent identical to its human counterpart, which we've named hSDH5. This gave us some confidence that the Sdh5 functions we discovered in yeast would also be carried ...

New windows opened on cell-to-cell interactions

... colloids with directed properties is a goal in many technologies, especially optics at nanoscales. Before applying the biomembrane, the identical negatively charged spheres repelled each other. With the membrane attached, conditions changed dramatically. Suddenly, the like-charged spheres were ...

Surviving mass extinction by leading a double life

... live specimens of the planktonic species Streptochilus globigerus, collected 600 miles offshore in the middle of the Arabian Sea, are genetically identical to the benthic species Bolivina variabilis, found off the coast of Kenya. Their surprising discovery suggests that planktonic foraminifera may ...

Happier, healthier, more productive hens on omega-3?

... costs due to injury, with the bonus that the eggs produced are also better for us." The study will house sixteen flocks of 1,500 hens each in identical dedicated free-range systems provided by Noble Foods. In the first year the researchers will compare a high omega-3 "Goldenlay" diet, fed from 16 ...

Down Under dinosaur burrow discovery provides climate change clues

... Martin rounded the corner of an outcropping and was astounded to see, right at eye level, the trace fossil of what appeared to be a burrow almost identical to the one he had identified in Montana. "I stared at it for a long time," recalls Martin. "In paleontology, the saying, 'where luck meets ...
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