Tag: "paternity" at biology news
Far more men than women favor routine paternity testing at birth
Substantially more men than women favor routine paternity
testing when a baby is born, according to a recent... be advantageous for the woman to keep the child's paternity
a secret so that her husband would continue to care for the child as if he were the father. "The...
European common frog found to use novel mating strategy
...this behavior, and took tissue samples to test the paternity
of the eggs in numerous clutches. What they uncove... gang to engage in clutch piracy. To determine the paternity
of the fertilized eggs, which can number between 300 and 3,000 in this species, Vieites gathered 16 ...
For some gorillas, local kin may mean local peace
... collected DNA samples to characterize patterns of paternity
within and among western gorilla social groups. The authors found that a strong majority of silverbacks were related to other silverbacks in the area and that in almost all cases, the nest sites of related silverbacks were found near each other. It w...
Unfaithful songbirds increase offspring fitness
...ilable, behavioural ecologists have routinely used paternity
analyses to study mating systems. We now know tha...se forest investigating social pairing and genetic paternity
in a population of blue tits. Back in the laboratory in Seewiesen, the scientists determined individ...
Standard improves tests of male DNA
... is female. Laboratories that perform forensics or paternity
DNA analyses can use the SRM to double check the accuracy of their equipment and test procedures for analyzing the Y chromosome. It also may be helpful for population studies that study whether the human race evolved from one or many "Adams." Each v...
Baboon fathers really do care about their kids
...x primate society, the project needed to determine paternity
for many infants. To do this without disturbing the population meant collecting baboon feces and then, with a protocol adapted from the study of human stools, isolating and comparatively analyzing the DNA within it. Such genetic information, Altmann...
DNA profiling is subject of two-day expert forum at Wright State
...ons of identity, implications of flawed databases, paternity
indices, factoring in error/examiner bias and the significance of cold hits. Presenters include: Dan Krane, Ph.D., associate professor of biology, Department of Biological Sciences at Wright State University, and founder and CEO of Forensic Bioinf...
Sex and gender scientists explore a revolution in evolution
...tect their infants by spreading the possibility of paternity
among several males. Other sexual traits, says Roughgarden, may represent a ''market economy'' dedicated to trading sexual opportunity for other resources. In many species, some individuals act as helpers to dominant males and reap some rewards in th...
Study to determine if infidelity among birds an attempt to avoid inbreeding, diversify genes
...ndercock said that while a high rate of extra-pair paternity
is common in songbirds, the occurrence in shorebirds, which have "incredible variation" in their mating systems occurs significantly less. Less than 8 percent of the broods in western sandpiper nests were not the offspring of both parents in the nest...
Sex and genetics: Why birds are unfaithful to their partners
...two alternative reproductive behaviors. Extra-pair paternity
occurs when females copulate with males other than...ese copulations lead to fertilizations. Extra-pair paternity
is common in songbirds, but much less common in other birds. Quasi-parasitism occurs when a male cop...
Discovery of activated protein C leads to lifesaving drug
...process similar to the test performed to establish paternity
in which scientists examine patterns in the DNA in blood cells, using markers for the DNA to determine if people are related to each other. Long and Bovill, whose work in this area has been consistently funded through grants from the National Instit...
Scientists to examine DNA of George Washington trees
...ost people are familiar with in criminal cases, or paternity
cases, and the like. With people there is a tremendous database of information, so we are able to match DNA to an individual with a great degree of accuracy. There is no similar database for trees. This to a very great extent is new; we'll be breakin...
Game of life allows all mating strategies
...es. The biologists obtained DNA for more than 400 paternity
tests by snipping a tiny piece from the tips of th...ale's clutch. The yellows specialized in sharing paternity
with other male types -- with one surprise that the biologists noted in their PNAS article: F...
Whitehead Receives $7 million NIH Grant To Build High-Speed Sequencing Machines
...; and provide a reliable method for DNA typing and paternity
testing inlaw enforcement. In fact, this same technology is currently being readied for use in Florida andNorth Carolina for DNA forensics. This particular application of the chip is100 times faster than current technology and would allow law enfo...
Fruit-Fly Mating May Produce A Game Of Evolutionary Leapfrog
...rs arranged 6,200 fruit-fly matings andcharted the paternity
of the 125,000 subsequent offspring.The results revealed a new factor controlling sperm success:The male's genes had to match in certain ways with thefemale's genes. In theory, under those conditions, males with the mostsuccessful genetic makeups wou...
Bird Dads Suffer Infidelity But Bring Up Baby
...en, as single parents, to raisechicks of uncertain paternity
for two more months. The females, meanwhile, were...y his own -- that is, when the male's assurance of paternity
is high. Instead, a male jacana sits on the nest, watching the mother of the chicks hewill raise, wh...
University of Florida Research Shows Zinc Triggers Body's Defenses
...ngerprinting methods likethoseused in criminal and paternity
investigations to understanding hownutrients directly affect the inner workings of human immune cells, Cousinssaid. In the study, 12 men took 50 milligram zinc tablets -- the typicalstrength available in supplements -- every day for 1...