Sentences with phrase «fewer genes in our genome»

«We have fewer genes in our genome than people originally expected because there's this other layer of complexity in the proteome, the collection of proteins expressed by the genome.

«There often seem to be a few genes in the genome that have large effects, often on multiple things,» said Ole Seehausen, an evolutionary ecologist at the University of Bern in Switzerland.

Not exact matches

A few that pop to mind are the Coconino Sandstone, the meandering / lateral channels in the Grand Canyon, the progressive order of the fossil record (complete with a pre-hominid through hominid progression), forms which bear features bridging the specially - created kinds (i.e. fish with tetrapod features, reptiles with mammalian features, reptiles with avian features, etc), the presence of anomalous morphological / genetic features (e.g. the recurrent laryngeal nerve, male nip - ples, the presence of a defunct gene for egg - yolk production in our own placental mammal genomes), etc, etc..

Scientists have learned that the lice genome is incredibly streamlined and the critters have few genes that could detoxify harmful chemicals, as explained in an article in PNAS.

As for the identities of Mendel's other four genes, Weeden says he expects them to be revealed in the next few years as more plant genomes give up their sequences.

Mitochondria carry only a few genes, but they are so plentiful that it's often easier to find their DNA than the single full human genome in a cell's nucleus.

In - depth analysis of the human body's microflora has been possible only in the past few years — a by - product of the same new gene sequencing techniques that have allowed scientists to cheaply and accurately identify the DNA of the human genomIn - depth analysis of the human body's microflora has been possible only in the past few years — a by - product of the same new gene sequencing techniques that have allowed scientists to cheaply and accurately identify the DNA of the human genomin the past few years — a by - product of the same new gene sequencing techniques that have allowed scientists to cheaply and accurately identify the DNA of the human genome.

(Syn 2.0 was an intermediate stage in this process, the first microbe with a genome smaller than that of M. genitalium, which with 525 genes has the fewest of any free - living natural organism.)

This week in Science, researchers led by genome sequencing pioneer Craig Venter report engineering a bacterium to have the smallest genome — and the fewest genes — of any freely living organism, smaller than the flower's by a factor of 282,000.

In the past few years, it has become clear that a phenomenon called alternative splicing is one reason human genomes can produce such complexity with so few genes.

«In the current study, using a genome - wide analysis of DNA methylation, we identified a few PPARα target genes that underwent ligand - activated PPARα - dependent DNA demethylation during the perinatal period and whose DNA methylation status persists into adulthood,» explains a corresponding author Koshi Hashimoto.

«If you're willing to accept something that is an elephant that has a few mammoth genes inserted into its genome and therefore is able to make some proteins that mammoths might, we're probably closer to that,» says Beth Shapiro, author of How to Clone a Mammoth: The Science of De-Extinction and an evolutionary biologist at UC Santa Cruz specializing in ancient DNA.

We call this process «speciation with gene flow,» and evolutionary biologists have long wondered if the genetic basis for this process is highly repeatable and if the genes involved are spread out across the whole genome or in a few discrete regions.»

There are even a few islands — those that contain genes involved in behavior and size, key traits for domesticated animals — that are in the genomes of both European and Asian pigs, Larson reports.

Uncovering the genetic pathogenesis of Alzheimer's disease has been a target of great interest over the past few years, and genome - wide mapping studies focusing on risk genes have led to significant advances in the field.

In particular, the Neandertal genome sequence can now be used to catalog changes that have become «fixed» (are invariant within a population or species) in modern humans during the last few hundred thousand years and should be helpful for identifying genes affected by positive selection since humans diverged from NeandertalIn particular, the Neandertal genome sequence can now be used to catalog changes that have become «fixed» (are invariant within a population or species) in modern humans during the last few hundred thousand years and should be helpful for identifying genes affected by positive selection since humans diverged from Neandertalin modern humans during the last few hundred thousand years and should be helpful for identifying genes affected by positive selection since humans diverged from Neandertals.

The study, whose first author is the quantitative biologist Ivan Iossifov, a CSHL assistant professor and on faculty at the New York Genome Center, finds that «autism genes» - i.e., those that, when mutated, may contribute to an ASD diagnosis - tend to have fewer mutations than most genes in the human gene pool.

The team used genome editing techniques to stop a key gene from producing a protein called OCT4, which normally becomes active in the first few days of human embryo development.

In 1997, when few genome sequences were available, Hieter helped create XREFdb, a public database that linked the functional annotations of genes studied in model organisms with the phenotypic annotations on the human and mouse genetic mapIn 1997, when few genome sequences were available, Hieter helped create XREFdb, a public database that linked the functional annotations of genes studied in model organisms with the phenotypic annotations on the human and mouse genetic mapin model organisms with the phenotypic annotations on the human and mouse genetic maps.

Genetic studies using samples along the distribution range of both subspecies and based on a few dozen nuclear markers have revealed loci of relatively high divergence (0.3 — 1.2 %) between subspecies embedded in a genome otherwise characterized by low levels of differentiation and high levels of bidirectional gene flow [21], [24]--[26], likely facilitated by high effective population sizes, high dispersal, and a relatively short generation time [21], [24]--[26].

In contrast to the honeybee genome, gene density in the parasitoid wasp genome is positively associated with the recombination rate; regions of low recombination are characterized by fewer genes with larger introns and by a greater distance between geneIn contrast to the honeybee genome, gene density in the parasitoid wasp genome is positively associated with the recombination rate; regions of low recombination are characterized by fewer genes with larger introns and by a greater distance between genein the parasitoid wasp genome is positively associated with the recombination rate; regions of low recombination are characterized by fewer genes with larger introns and by a greater distance between genes.

We have found two regions of the genome where error - prone genes lie and have narrowed the first region to a few hundred bases in an interval that has only two genes.

As it turns out, the octopus genome is almost as large as a human's and actually contains more protein - coding genes: 33,000, compared with fewer than 25,000 in humans.