Chromosome Current Events | Chromosome News | 2
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Researchers discover mechanism that prevents two species from reproducing
Cornell researchers have discovered a genetic mechanism in fruit flies that prevents two closely related species from reproducing, a finding that offers clues to how species evolve. view more (2009-10-27)
Dogs, Humans, put Heads Together to Find Cure for Brain Cancer
Pinpointing the genes involved in human brain cancer can be like looking for a needle in a haystack, and sometimes the needle you find may not be the right one. view more (2009-07-07)
"Acquittal" for Suspected Schizophrenia Gene
Just under one per cent of all Germans suffer from schizophrenia. The susceptibility to contracting this severe psychological disease is inherited; various studies indicate that a gene on chromosome 1 shares responsibility for the outbreak of the disease. However, in what is the biggest control study to date, which is being published in the May... view more... (2002-04-22)
First gene associated with myeloproliferative diseases
Myelodysplastic / myeloproliferative diseases (MDS/MPD) are blood stem cell disorders characterized by ineffective formation and development of blood cells in the bone marrow, resulting in abnormal development of bone marrow precursor cells and a reduction in the number of blood cells. view more (2005-08-26)
Researchers shed light on shrinking of chromosomes
A human cell contains an enormous 1.8 metres of DNA partitioned into 46 chromosomes. view more (2007-06-12)
Scientists take a step nearer to creating an artificial egg using a somatic cell
Scientists believe that they are an important step nearer to success in creating an artificial egg from the combination of the nucleus of a somatic cell and an oocyte which has had its DNA-carrying nucleus removed, a conference of international fertility experts heard today (Tuesday 1 July). Dr Peter Nagy, from Reproductive Biology Associates,... view more... (2003-06-28)
Zeroing in on Alzheimer's
Hereditary Alzheimer's disease has been shown to be the result of mutations in certain specific genes. Other cases of Alzheimer's are also assumed to be traceable to the influence of a number of still unidentified genes. It is probable that these genes are located in a large area on chromosome 10q, which contains more than 100 genes. Working with... view more... (2003-09-25)
Rong Li Lab probes mechanism of asymmetry in meiotic cell division
The Stowers Institute's Rong Li Lab has characterized a mechanism that allows for asymmetrical cell division during meiosis in oocytes. By tracking chromosome movement in live mouse oocytes, the team discovered that chromosomes can recruit to their vicinity a protein called formin-2. view more (2008-10-08)
Duke-NIEHS team shows how DNA repairs may reshape the genome
Researchers at Duke University Medical Center and at the National Institute of Environmental Health Sciences (NIEHS) have shown how broken sections of chromosomes can recombine to change genomes and spawn new species. view more (2008-08-14)
Gene linked to lupus might explain gender difference in disease risk
In an international human genetic study, researchers at UT Southwestern Medical Center have identified a gene linked to the autoimmune disease lupus, and its location on the X chromosome might help explain why females are 10 times more susceptible to the disease than males. view more (2009-03-30)
Embryonic selection of sex avoids conceiving blind children
The Assisted Reproduction Unit at the Quirón Hospital in Donostia-San Sebastián has managed, for the first time in the Basque Country, to successfully carry out an embryonic sex selection in a woman who is a carrier of the disease Retinosis Pigmentaria, linked with the X chromosome - in order to avoid giving birth to a male child. view more (2006-12-19)
Evolution of genomic imprinting
How we come to express the genes of one parent over the other is now better understood through studying the platypus and marsupial wallaby - and it doesn't seem to have originated in association with sex chromosomes. view more (2007-09-07)
Hotspots found for chromosome gene swapping
Crossovers and double-strand DNA breaks do not occur randomly on yeast chromosomes during meiosis, but are greatly influenced by the proximity of the chromosome's telomere, according to research in the laboratory of Whitehead Fellow Andreas Hochwagen. view more (2007-11-30)
A test to prove a woman has been raped
Stray Y chromosomes can confirm an allegation of rape A TEST that can prove a woman has been raped even if no sperm are found should be widely adopted, the first large-scale study suggests. After the trauma of rape, women who report it have to undergo a medical examination to look for sperm. But the... view more... (2002-02-27)
Cleft lip and palate: Genes more important than thought?
Comparing 500,000 snippets of human DNA put scientists from the University of Bonn on the right track. A genetic variant on chromosome 8 occurs with significantly higher frequency in people with cleft lip and palate than in the control group. The results are to be published in the forthcoming issue of the journal Nature Genetics. view more (2009-03-09)
Genes from the father facilitate the formation of new species
The two closely related bird species, the collared flycatcher and the pied flycatcher, can reproduce with each other, but the females are more strongly attracted to a male of their own species. view more (2007-10-05)
Baylor Human Genome Sequencing Center marks end of sequencing effort with chromosome 3
The sequencing of human chromosome 3 announced in the current issue of the journal Nature represents a milestone for the Baylor College of Medicine Human Genome Sequencing Center - the final stage of its multi-year project to sequence the human genome. view more (2006-04-27)
Mothers transmit DNA through daughters only
Scientists have argued whether or not the often-studied mitochondrial DNA molecule is clonally inherited. It is with assuming clonal inheritance this type of DNA has been used to track the origin of modern human as well as to draw pictures of genetic relationships among other animals and plants. The conflict has now been solved by two evolutionary... view more... (2001-09-06)
The story of X -- evolution of a sex chromosome
In the first evolutionary study of the chromosome associated with being female, University of California, Berkeley, biologist Doris Bachtrog and her colleagues show that the history of the X chromosome is every bit as interesting as the much-studied, male-determining Y chromosome, and offers important clues to the origins and benefits of sexual... view more... (2009-04-17)
Study links regions of two chromosomes to susceptibility for type of autism
A new Cincinnati Children's Hospital Medical Center study links regions of two chromosomes to susceptibility for a type of autism characterized by regression in development. Developmental regression can include the loss of previously acquired language, social skills or both. view more (2005-06-08)
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