Tag: "pairs" at biology news

'Uniquely human' component of language found in gregarious birds

... from a rattle-warble base by adding rattle-warble pairs at the end. The simplest song (ab) was one rattle...ing the patterns with shorter songs made up of two pairs of rattles and warbles, the birds were able to recognize strings containing 6-to-8 song elements (ab...

The birds and the b's: Challenging Chomsky, starlings learn 'human-only' syntax patterns

..., after learningthe patterns with songs made up of pairs of rattles and warbles, the birdswere able to successfully recognize grammatical strings of threerattles-three warbles and four rattles-four warbles, where the new rattlesand warbles had been inserted in the middle." The finding that starlings can gr...

Even at small scales, the big decisions are made at the water cooler

...tail party talk primarily, perhaps exclusively, in pairs alone. No one belongs to a group, or takes dictati... randomness there are subtle relationships between pairs in the group, and you can actually determine what the group's decision will be, based solely on an a...

Mouse to man: The story of chromosomes

... to evolve faster is not by making changes in base pairs (the chemicals that make up DNA), but by changing chunks of genome," said Lupski. The sequencing of chromosome 17 and mouse chromosome 11 was an international effort involving researchers from around the globe....

Controversial findings help explain evolution of life

...e, guanine and cytosine - that as A-T and G-C base pairs form DNA and ultimately become the blueprint for a...es that stability, through attachments within base pairs and/or with neighboring bases. These attachments allow damaging photonic energy to be released as he...

Enzyme crystal structure reveals 'unexpected' genome repair functions

... from a variety of sources that occurs to its base pairs of nucleotides. It is estimated that in every human cell more than 10,000 DNA bases are repaired each day, making NER critically important for cell survival and protection against mutations. NER is a critical defense mechanism that removes DNA lesion...

Rice tapped for model programs merging teaching, research

... projects in faculty research labs. In the module, pairs of students will identify the products of an uncharacterized plant enzyme. Using biotechnological methods, each pair will create a genetically modified yeast that will produce enough of the enzyme for systematic study. In the final phase, the student...

Resident birds display migratory restlessness

...atory behavior in any number of resident-migratory pairs to probe the many ways birds take flight to improve their chances of survival....

Lefties have the advantage in adversarial situations

... from the fossil record. Ten out of the 11 species pairs showed more scars on the right-handed shells, suggesting that crabs are attacking them in preference to their left-handed counterparts. These traces of failed predation indicated to the researchers that left-handed coiling enhances survival from atta...

Referential-gesture communication in wild chimpanzees (Pan troglodytes)

... the gesture. The scratch gesture occurred between pairs of adult males and was used more often in pairs consisting of high-ranking males. On the basis of their observations, the researchers suggest that t...

Locust research suggests that physical state has much to do with learning

...ly encountered. The strong signal from these hairs pairs with a signal from the smell." "The locust forms an association between the two and a signal is then sent to the brain, where it gets processed," he said. "It seems locusts assign greater value to the wheat experienced during the deprived state, and...

NHGRI announces new sequencing targets

...ill allow conserved sequences as small as six base pairs to be identified reliably. Six base pairs is roughly the size of a transcription factor binding site: a small DNA sequence occurring near a ge...

Sociality of sweat bees evolved simultaneously during climate change

... used both fossils as well as more than 2,300 base pairs of DNA sequences from three genes to infer the evolutionary history, or phylogeny, of the family's eusocial lineages and their relatives. The DNA sequencing sheds light on how divergent the various species are from each other, and the fossils allow t...

'Genetic network' guards against lethal DNA damage

...aid. The goal of the Hopkins study was to identify pairs of genes that, while different, play redundant roles in governing genomic integrity in yeast cells, filling in for each other when one of the genes is mutated or deleted. Such redundancies ensure that each task in the network of biochemical reactions...

Mispairs in genetic material make protein synthesis more efficient

...enetic material boils down to sequences of matched pairs of nucleotides that cellular machinery decodes to ...pairs," do not bind together as tightly as matched pairs bind, making transfer RNA "a compressed spring ready to be sprung," according to William McClain, a ...

New evidence that natural selection is a general driving force behind the origin of species

...s in ecological adaptation between the hundreds of pairs of related species in the original studies. When they compared these differences in adaptation with the degree of reproductive isolation for each pair and then added them up, the researchers found that the overall association was positive with a surp...

Genetic links among men who share surnames

By comparing the DNA of 150 pairs of men who share British surnames, researchers have shown that about a quarter of pairs are linked genetically. The link is via the Y chromosome--the part of our genetic material that conf...

Study suggests that publicly available genome data may contain small but significant errors

...--a sequence of DNA which in this case was 70 base pairs long. Each of the 70 base pairs is unique in the target organism's genome and serves as a landmark in that genome. These probes can ...

Gene design program from Johns Hopkins simplifies, automates and speeds design of 'artificial' genes

...gn automates the process of determining which base pairs -- the building blocks of DNA -- should be linked ...and the order of the hundreds or thousands of base pairs making up that gene determines the order of the amino acid building blocks making up that protein. B...

Two NIH initiatives launch intensive efforts to find roots of common diseases

...mally occur in the order of the 3 billion DNA base pairs or letters that make up a person's genome. SNPs are like single-letter misspellings of a word. Most of these genetic variations are biologically meaningless. But a small fraction of these SNPs alter the function of a gene often only slightly. The co...

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(Date:10/16/2014)... human body. Battles are won, lost or sometimes ... stalemate—known as tumor dormancy—can last up to 25 ... is poorly understood. , A new computational ... a Professor of Chemistry at Princeton University, may ... the switch to a malignant state. Published today ...
(Date:10/16/2014)... Washington land managers have a new synthesis of recent ... mixed-conifer (MMC) forests in the two states. , ... Eastern Oregon and Washington: A Synthesis of the Relevant ... general technical report published by the U.S. Forest Service,s ... a request from managers for a synthesis of the ...
(Date:10/16/2014)... can be cultivated efficiently, they are anything but ... by monoculture cultivation is becoming increasingly evident. Despite ... form and are regarded as the sole possibility ... quite wrongfully, finds Bernhard Schmid, an ecology professor ... novel form of agriculture and forestry. After all, ...
Breaking Biology News(10 mins):Modeling tumor dormancy 2New report synthesizes best available science on management of moist mixed-conifer forests 2Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3
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