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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