Search results for chromosome:
Why females live longer than males: is it due to the father's sperm?
Dec 01, 2009 |
4.6 / 5 (20) |
12
Researchers in Japan have found that female mice produced by using genetic material from two mothers but no father live significantly longer than mice with the normal mix of maternal and paternal genes. Their findings provide ...
Newly explored bacteria reveal some huge RNA surprises
Dec 02, 2009 |
4.9 / 5 (12) |
1
(PhysOrg.com) -- Yale University researchers have found very large RNA structures within previously unstudied bacteria that appear crucial to basic biological functions such as helping viruses infect cells ...
Down Syndrome becoming more prevalent in the U.S.
Dec 02, 2009 |
4.7 / 5 (9) |
4
(PhysOrg.com) -- A new study, aimed at estimating the prevalence of Down Syndrome in newborns, children and teenagers in 10 areas of the U.S., has found an increase in prevalence of more than 30 percent over ...
Ovaries must suppress their inner male
Dec 10, 2009 |
4.7 / 5 (9) |
0
For an ovary to remain an ovary, the female organ has to continuously suppress its inner capacity to become male. That's the conclusion of a study in the December 11th issue of the journal Cell revealing that t ...
Beyond genomics, biologists and engineers decode the next frontier
Nov 18, 2009 |
5 / 5 (7) |
0
(PhysOrg.com) -- A team of Princeton biologists and engineers has dramatically improved the speed and accuracy of measuring an enigmatic set of proteins that influences almost every aspect of how cells and ...
Introns: A mystery renewed
Dec 10, 2009 |
4.8 / 5 (5) |
0
The sequences of nonsense DNA that interrupt genes could be far more important to the evolution of genomes than previously thought, according to a recent Science report by Indiana University Bloomington and ...
New Down syndrome treatment suggested by study in mice
Nov 18, 2009 |
4.6 / 5 (5) |
1
At birth, children with Down syndrome aren't developmentally delayed. But as they age, these kids fall behind. Memory deficits inherent in Down syndrome hinder learning, making it hard for the brain to collect experiences ...
Chromosomes dance and pair up on the nuclear membrane (w/ Video)
Nov 13, 2009 |
4.7 / 5 (3) |
0
(PhysOrg.com) -- Meiosis - the pairing and recombination of chromosomes, followed by segregation of half to each egg or sperm cell - is a major crossroads in all organisms reproducing sexually. Yet, how the ...
Largest gene study of childhood IBD identifies 5 new genes
Nov 15, 2009 |
4.3 / 5 (3) |
0
In the largest, most comprehensive genetic analysis of childhood-onset inflammatory bowel disease (IBD), an international research team has identified five new gene regions, including one involved in a biological pathway ...
Genetic studies reveal new causes of severe obesity in childhood
Dec 06, 2009 |
5 / 5 (2) |
1
Scientists in Cambridge have discovered that the loss of a key segment of DNA can lead to severe childhood obesity. This is the first study to show that this kind of genetic alteration can cause obesity. The results are published ...
New molecule identified in DNA damage response
Dec 08, 2009 |
5 / 5 (2) |
0
(PhysOrg.com) -- Evolution places the highest premium on reproduction, natural selection’s only standard for biological success. In the case of replicating cells, life spares no expense to ensure that the ...
Scientists identify DNA that regulates antibody production
Nov 20, 2009 |
5 / 5 (1) |
0
(PhysOrg.com) -- When foreign invaders trip the immune system’s alarm, antibodies need to be specially sculpted to attack them head on. New research now shows that gene segments called enhancers control the reshuffling of ...
Amount of gene surplus determines severity of mental retardation in males
Dec 10, 2009 |
5 / 5 (1) |
0
Researchers have discovered a new explanation for differences in the severity of mental illness in males. The more excess copies of a certain gene, the more serious the handicap. The genetic defect is situated on the X-chromosome; ...
Gene mismatch influences success of bone marrow transplants
Nov 22, 2009 |
4 / 5 (1) |
0
A commonly inherited gene deletion can increase the likelihood of immune complications following bone marrow transplantation, an international team of researchers reports in the November 22 advance online issue of Nature Ge ...
PLoS Genetics 2009 maize genome collection
Nov 19, 2009 |
not rated yet |
0
Maize is an important crop in many countries of the world. It is widely used for human consumption, animal feed, and industrial materials. It also is considered an exemplar plant species for studying domestication, molecular ...
