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Current Chromosomes News and Events

Current Chromosomes News and Events, Chromosomes News Articles.
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Discovery of a new tumor suppressor previously thought to be an oncogene
A gene that has for decades been considered a tumor promoter, the PLK1 gene, can also perform the exact opposite function: halting the development of cancer. (2018-08-07)
Genetic 'toolkit' helps periwinkles gain advantage on the seashore
Periwinkles, struggling to survive the seashore battleground, have developed a genetic 'toolkit' to help them adapt to different environments, a new study shows. (2018-08-07)
Genetic screening before embryo transfer fails to improve the chance of a baby
The genetic screening of fertilized eggs for embryo selection in assisted reproduction makes no difference to live birth rates, according to results from the largest published study of its kind. (2018-08-05)
Fish reproduction: Two times a lady
A DNA probing technique clarifies the mechanism behind clonal reproduction of female dojo loach fish, also providing insight into the ancestral origin of the clonal population. (2018-08-02)
Yeast grow -- but can't always breed -- with their sixteen chromosomes fused into two
Baker's yeast survive and grow after a drastic reorganization, not of their genes, but of the chromosome superstructures that house, protect and control access to their DNA code. (2018-08-01)
Unisexual salamander evolution: A long, strange trip
The reproductive history of the unisexual, ladies-only salamander species is full of evolutionary surprises. (2018-07-25)
A protein that promotes compatibility between chromosomes after fertilization
A research team from the Center for Biomedical Research, at the University of Algarve, and Instituto Gulbenkian de Ciência, led by Rui Gonçalo Martinho and Paulo Navarro-Costa has identified the mechanism by which the fertilized egg balances out the differences between chromosomes inherited from the mother and the father. (2018-07-24)
Scientists surmount epigenetic barriers to cloning with two-pronged approach
An international group of researchers have raised the viability of mice that were cloned using a method called somatic cell nuclear transfer, by stimulating two epigenetic factors, and by doing this have shown that creating cloned animals more efficiently will require further work in the area of epigenetics. (2018-07-19)
New control of cell division discovered
When a cell divides, its constituents are usually evenly distributed among the daughter cells. (2018-07-12)
Parental chromosomes kept apart during embryo's first division
It was long thought that during an embryo's first cell division, one spindle is responsible for segregating the embryo's chromosomes into two cells. (2018-07-12)
Protein function repairing genetic damage in spermatogenesis identified
Researchers from the Department of Cell Biology, Physiology and Immunology and the Institute for Biotechnology and Biomedicine of the Universitat Autònoma de Barcelona, have unmasked the functioning of a protein involved in DNA repair, ATR, in the meiotic recombination process which takes place during the development of spermatocytes -- sperm precursor cells -- and how inhibiting this protein causes anomalies which block spermatogenesis. (2018-07-09)
Genome's gyrations fit right into Rice University model
Computer models developed at Rice University show that energy landscape theory can predict not only the form of DNA contained in a cell's nucleus during interphase, but also its dynamic behavior. (2018-07-09)
Mayo researchers find off/on switch for DNA repair protein
Damage to DNA is a daily occurrence but one that human cells have evolved to manage. (2018-07-02)
Mutation and 3D modeling reveal new structure to cell division process
Structure of cohesin, a cell division protein, could be much different than expected, study shows. (2018-07-02)
A case of 'kiss and tell': Chromosomal kissing gets less elusive
Chromosomes occupy different territories in the nucleus; their arrangement and communication with each other is still poorly understood. (2018-06-20)
Breast cancer could be prevented by targeting epigenetic proteins, study suggests
Researchers at the Princess Margaret Cancer Centre in Toronto have discovered that epigenetic proteins promote the proliferation of mammary gland stem cells in response to the sex hormone progesterone. (2018-06-19)
Non-coding DNA changes the genitals you're born with
Male mice grow ovaries instead of testes if they are missing a small region of DNA that doesn't contain any genes -- a finding that could help explain disorders of sex development in humans, at least half of which have an unknown genetic cause. (2018-06-14)
The cartography of the nucleus
A new technique creates maps of the folded structures of DNA, RNA, and proteins within the cellular nucleus, revealing elegant 'hubs' of organization. (2018-06-08)
Avoiding catastrophe: Yeast study reveals clues to maintaining genome size
Study reveals an unexpected role for a well-known protein machinery in maintaining the correct DNA content with implications for cancer and other diseases. (2018-06-06)
Two-step process underpins upkeep of key protein in cell division
Two complementary processes enable a critical protein, known as CENP-A, to be replenished to enable cells to divide, detailed analysis shows. (2018-06-04)
Ocean-migrating trout adapt to freshwater environment in 120 years
Steelhead trout, a member of the salmon family that live and grow in the Pacific Ocean, genetically adapted to the freshwater environment of Lake Michigan in less than 120 years. (2018-05-31)
Wars and clan structure may explain a strange biological event 7,000 years ago
Genetic data suggest there was a collapse in male, but not female, genetic diversity starting 7,000 years ago. (2018-05-29)
Why do we need one pair of genome?
Scientists have unraveled how the cell replication process destabilizes when it has more, or less, than a pair of chromosome sets, each of which is called a genome -- a major step toward understanding chromosome instability in cancer cells. (2018-05-24)
Tianjin University makes breakthrough in synthetic genome rearrangement
A synthetic biology team at Tianjin University (TJU) has reported new methods and strategies for genome rearrangement and accelerated the evolution of yeast strains with their three latest studies published in Nature Communications on May 22, 2018. (2018-05-22)
Genome structure of dinosaurs discovered by bird-turtle comparisons
Genome structure of dinosaurs discovered by bird-turtle comparisons A discovery by scientists at the University of Kent has provided significant insight into the overall genome structure of dinosaurs. (2018-05-21)
Genome editing method targets AIDS virus
By destroying the regulatory genes of the AIDS virus HIV-1 using the genome editing system CRISPR/Cas9, a Japanese research group has succeeded in blocking the production of HIV-1 by infected cells. (2018-05-18)
Blocking two enzymes could make cancer cells mortal
EPFL scientists have identified two enzymes that protect chromosomes from oxidative damage and shortening. (2018-05-16)
Amplification of key cellular organizer may initiate cancer, study suggests
Cells begin to accumulate centrosomes -- organelles that play a vital role during cell division -- before they transform into cancer cells, according to a new study of patients with Barrett's esophagus condition, which is associated with esophageal cancer. (2018-05-08)
We still don't know how strange celibate animals evolve
A new study has cast doubt on leading theory for how tiny creatures have evolved for 50 million years -- without ever having sex. (2018-04-25)
Study shows a new approach to treating patients with stage IV Wilms tumor
A new study showing significantly improved survival rates for patients with stage IV Wilms tumors with lung metastases was recently published in the Journal of Clinical Oncology. (2018-04-25)
Rochester scientists discover gene controlling genetic recombination rates
Genetic recombination is vital to natural selection, yet some species display far more crossover than others. (2018-04-20)
Let's talk about sex chromosomes
Vincent Pasque from KU Leuven, Belgium, and Kathrin Plath from UCLA led an international study into how specialized cells reprogram to induced pluripotent stem cells (iPS). (2018-04-19)
Why is it harder for females to gain weight?
Why is it harder for females to gain weight? A new study proposes that part of the answer may be in the brain. (2018-04-18)
Study reports possible novel method for stopping untreatable pediatric brain cancers
Researchers used an experimental molecular therapy in preclinical laboratory tests to effectively treat several types of deadly pediatric brain cancer and now propose advancing the treatment to clinical testing in children. (2018-04-17)
Scientists discover a role for 'junk' DNA
Researchers at the University of Michigan Life Sciences Institute and the Howard Hughes Medical Institute have determined how satellite DNA, considered to be 'junk DNA,' plays a crucial role in holding the genome together. (2018-04-11)
'AGameOfClones': Identification of transgenic organisms
Researchers at Goethe University Frankfurt have developed a concept called 'AGameOfClones,' which allows to distinguish easily whether transgenic organisms carry an inserted foreign gene on one or on both chromosomes. (2018-03-27)
Blackbirds in the city: Bad health, longer life
Blackbirds live longer in cities than in forests. But their telomeres, the repetitive stretches of DNA at the ends of the chromosomes, show that these city birds have a much poorer health status than their rural cousins. (2018-03-20)
Kansas State University researchers make breakthrough in glyphosate resistance in pigweeds
Kansas State University researchers have discovered the mechanism by which pigweed develops resistance to glyphosate, a popular herbicide. (2018-03-12)
Study sheds light on the genetic origins of the two sexes
This new study punches a hole in the idea that increased genetic complexity of sex chromosomes accompanied the origin of sexes. (2018-03-08)
Having children can make women's telomeres seem 11 years older
A study by George Mason University Researchers found that women who have given birth have shorter telomeres than those who haven't. (2018-03-08)
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