Tag: "instructions" at biology news
Disease-free mosquito bred to disease-carrier can have all disease-free progeny
...are working to create a gene-drive system by using instructions
copied from the nanos (nos) gene, which is essential for germline formation. Think of the nanos instructions
as a key to a room, Adelman said. Using the nanos key, the researcher team successfully achieved g...
Research team discovers gallstone gene
...three times higher. The relevant gene contains the instructions
for building a molecular pump which transports cho...G8-gene," Dr. Gruenhage explains. "It contains the instructions
for building a pump responsible for transporting the blood lipid cholesterol from the liver into the...
Study provides new data about the laws governing embryo development in organisms
... These changes are coordinated through a series of instructions
that must be correctly interpreted within the cell, and this means that the information must pass along a pathway of signalling molecules. These pathways have been conserved across evolution, and therefore studies using models such as the fruit fly p...
Doing nature one better: Expanding the genetic code in living mammalian cells
...dded to the growing protein chain according to the instructions
spelled out in the genetic code till a stop codon for which no corresponding tRNA/amino acid pair exists lets everybody know that this particular job is done. From a large pool of mutated aminoacyl-tRNA synthetases the enzyme that loads tRNAs w...
MU maps course for improving pre-college science education
... that is intrinsic in humans as a metaphor for the instructions
that determine movement of cells during developmen...ll Fate portion, students will learn how cells get instructions
to maintain or change their properties, or their fates, and what health problems occur when these in...
University of Washington researchers play leading role in major study of human genome function
...s are so-called "regulatory elements" that contain instructions
for switching genes on or off, and for controlling how DNA is packaged and replicated within a human cell. Scientists believe these DNA sequences may play a very important role in some diseases, such as prostate or colon cancer. The UW was a leadi...
Undergraduate research shows leaderless honeybee organizing
...o the popular conception of a colony controlled by instructions
from its breeding queen mother, the research shows a picture of the queen as a passive egg layer whose own behavior is programmed, with changes dictated by signals delivered by older workers. This does not mean, however, that the colony is controll...
UCLA researchers reprogram normal tissue cells into embryonic stem cells
...n a cell nucleus, DNA - an organisms unique map or instructions
- wraps around histones, which serve as a kind of scaffolding for compaction of the long DNA molecule. Histones dont merely package DNA. Chemical tags on histones determine which genes are expressed or shut off in the DNA. In the reprogrammed cells, ...
Common cancer gene sends death order to tiny killer
...he cell, such as the messenger RNAs that carry the instructions
to make proteins. Once produced, microRNAs stick to messenger RNAs and, like crumpled paper jammed in a copy machine, prevent proteins from being made. Josh Mendell, M.D., Ph.D., an assistant professor in the McKusick-Nathans Institute of Genetic ...
Swabs not reliable for detecting lead dust in homes
... tip will turn pink or red if lead is present. The instructions
say the swabs will instantly detect lead in dust a... which might be confusing to consumers because the instructions
do not guide consumers on how to interpret a brown result. The brown tip might result from dirt hidi...
Newly identified mechanism for silencing genes points to possible anti-cancer strategies
Genes provide the instructions
used by the individual cells to produce the many different proteins that make up the body. Scientists are only beginning to appreciate, however, the extraordinary degree of control exercised over every step of the production process. Only about 10...
First demonstration of new hair follicle generation in an animal model
...e in the skin which made it receptive to receiving instructions
from wnt proteins, says senior author George Cotsarelis, MD, Associate Professor of Dermatology. The wnts are a network of proteins implicated in hair-follicle development. Researchers previously believed that adult mammal skin could not regenerate...
Researchers publish first marsupial genome sequence
...ins are made. Second, many of the new DNA instructions
appear to be derived from transposons, or "jumping genes," which are also located in areas once thought to be junk DNA. "Transposons have a restless lifestyle, often shuttling themselves from one chromosome to another," said the study's first au...
University of Pittsburgh discovers genetic 'shut down' trigger in healthy immune cells
... crucial portions of genetic material that deliver instructions
from DNA, called messenger RNA, in normal blood samples and in a quarter of leukemia samples. "DNA is the blueprint for all living cells. It carries the genetic code for most biological functions and is passed virtually unchanged from generation to...
'Personality-gene' makes songbirds curious
...Parus major). The gene (Drd4) carries the building instructions
for a receptor in the brain, which forms the docking station for the neurotransmitter dopamine. Birds with a specific variant of this dopamine receptor D4 gene show a stronger exploratory behaviour than individuals with other variants (Proceedings of...
Carnegie Mellon University scientists identify genes activated during learning and memory
...Carnegie Mellon team created a step-by-step set of instructions
for a computer to search the letters of code that make up the human genome to find just those genes activated by CREB and zif268. They specifically searched almost 20,000 genes to find those that CREB and zif268 bind to. This work, conducted by Carne...
Information processing in the central nervous system: the signalling system controlling movement
... pattern generating activities to send appropriate instructions
to motorneurones controlling movement. Spinal interneurones exhibit a remarkable variety of firing patterns in response to a pulse of injected current, with important implications for information processing. These patterns range from repetitive to de...
Why small dogs are small
...ir analyses confirmed that the location of genetic instructions
for keeping dogs small was near the IGF1 gene. ...ant regions, the researchers concluded the genetic instructions
to make dogs small must be at least 12,000 years old. "Its as ancient as all small dogs," Lark sa...
Ultrathin films deliver DNA as possible gene therapy tool
MADISON - Gene therapy - the idea of using genetic instructions
rather than drugs to treat disease - has tickled scientists' imaginations for decades, but is not yet a viable therapeutic method. One sizeable hurdle is getting the right genes into the right place at the right time. Engineers at the University o...
Blood's clotting cells harbor 'ticking time bombs,' finding may help extend blood supply
...g their life span. Cell nuclei contain the genetic instructions
that ultimately direct the activities of other kinds of cells. The finding has a whole list of potential implications, added study collaborator Benjamin Kile, also of The Walter and Eliza Hall Institute of Medical Research. For us, probably the mos...
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