Sentences with phrase «sequence of a particular gene»

They can also estimate how rapidly the DNA sequence of a particular gene may change, giving a «molecular clock» that puts rough dates next to the tree's branches.

Not exact matches

With respect to antibiotic resistance, this novelty can be induced and we can trace the novelty to particular mutations arising absent gene transfer; i.e. the genes which give rise the resistance were not present prior to the mutation, they are new sequences and not simply the activation of dormant genes.

The team found that humans are equipped with tiny differences in a particular regulator of gene activity, dubbed HARE5, that when introduced into a mouse embryo, led to a 12 % bigger brain than in the embryos treated with the HARE5 sequence from chimpanzees.

In a new study, researchers are taking joint biopsy tissue from patients at the start of a new therapy and then six weeks later to see if they can find a predictor gene sequence that will clearly identify which patients respond to a particular therapy.

Over the longer term, the identification of the coffee tree genome sequence opens up new possibilities for varietal improvement, knowledge of the specific functions of the genes (in particular those specific to coffee trees), the possibility of transferring results to other species, and refining diagnostic tools for the function of the plant.

Olson and van Rooij began eyeing a particular microRNA whose sequence is identical to a portion of one gene.

Previous work had shown that two variations in the COX - 2 gene, with either a guanine (G) or a cytosine (C) molecule at a particular spot in the gene's DNA sequence, lead to different levels of COX - 2 protein.

It is true that a particular gene of an Avidian that evolved to perform the software operation called equals is complex in this sense — a specific, complex sequence of instructions produces the function.

Even with the advent of DNA sequencing and genetic identification, this was generally done with one particular ribosomal gene.

In a recent issue of Nature, the researchers reported on a particular gene sequence that allows Bacteroidetes to carry out this function.

In particular, the comparison of gene sequences in large numbers of patients and controls will be a key step in strategies for disease gene identification.

This represents a particular challenge to disease gene analysis: How do we analyze genes and establish genotype - phenotype relationships against a background of high natural genome sequence variability?

A DNA sequence that is conserved across species suggests that it plays an important role in the ultimate function of that particular gene.

Single - cell RNA sequencing allows researchers to determine the precise nature of the total gene transcripts, or all of the genes that are actively expressed in a particular cell.

It so happened that, back in 1977, Carl Woese, Sogin's mentor, had employed one particular gene sequence to identify a previously unknown form of life, the archaea, a discovery that transformed science's view of biology.

By comparing the sequences of these genes in healthy versus anorexic people, the team found that anorexic women consistently had particular sequence variations in two of these three genes.

And next - generation sequencing, in particular, RNA sequencing, allows researchers to delineate changing patterns of gene expression as new cell types form.

The researchers also hope to use gene sequencing technology to compare the brains of those who have died of Alzheimer's with those of people who died without neurological diseases, in the hope of finding DNA sequences of particular microbes in the diseased brains.

Comparisons between the nucleotide makeup, or sequence, of particular genes allows scientists to see how closely they are related, and thus, group the organisms accordingly.

gene A hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism.

gene A sequence of DNA that determines a particular characteristic in an organism.

To exclude the possibility that the results were due to nonspecific effects of this particular STAT6 siRNA, another siRNA targeting the exon 22 sequence of the STAT6 gene (ID # 4689) was utilized.

For instance, services like 23andMe use genotyping to zoom in on a selection of important DNA base pairs, while specific gene sequencing provides data on particular bases.