Sentences with phrase «evolutionary branches of the tree»

Kingdoms are so 20th century when it comes to the main evolutionary branches of the tree of life.

Modern molecular technologies (genomics and other omics), through comparing nucleic acid and amino acid sequences across living species, are enabling the identification of genetic components and patterns stingily conserved by evolution, from those in which times of evolutionary branching of the tree of life can be inferred.

Not exact matches

In the upper world, mind, thought, and ideas make their appearance as fruit on the topmost branches of an evolutionary tree.

Conway Morris proposes that there is an orientation towards the evolution of certain structures, such as the «camera eye», resulting in a greater likelihood of such structures being developed in unrelated branches of the evolutionary tree.

«Global biodiversity catastrophes are not about death but about the pruning of evolutionary branches on the tree of life at a rate much higher than the sprouting of new shoots,» added co-author Ivo Duijnstee, an adjunct assistant professor of integrative biology.

To better understand how frogs evolved, scientists created a new phylogenetic tree — a branching diagram of evolutionary relationships — using data from hundreds of frog genomes.

«In the Cretaceous amber we examine, the ants and termites represent the earliest branches of each evolutionary tree, and the species are wildly different from what their modern relatives look like today,» said co-author Phillip Barden, a recent graduate of the comparative biology doctoral program at the Museum's Richard Gilder Graduate School and a National Science Foundation Postdoctoral Fellow at Rutgers University.

She even followed cannibalism's environmental connection onto the human branch of the evolutionary tree.

«The key is having a phylogenetic tree to understand how these species are related to one another and the amount of time that has taken place between different evolutionary branching events,» said lead author Will Gearty, a graduate student at Stanford Earth.

The new technique used software to assign the cancer cell with the fewest mutations as the ancestral clone and place it at the root of the evolutionary family tree, with the other clones arranged as branches above it.

This self - similarity also indicates that evolutionary change is a process of continual splitting of the branches of the tree.

By looking at distantly related bacteria from different branches of the evolutionary tree, the team speculate that the ability to alter torque in this way may have evolved up to two billion years ago.

Mutations that occur in the first malignant cells, those in the trunk of this evolutionary tree, will end up in all the tumour cells; mutations that arise later will be found only in the tree's branches.

Searching for another tippy - top branch of the evolutionary tree still isn't part of the NASA vision.

The evolutionary relationships between nearly 8,000 species of fish are delineated in the branches of the tree, allowing the researchers to make inferences about all 30,000 or so species of ray - finned fish.

For years, evolutionary biologists have believed that the sedentary sponge — that mushy aquatic creature so rudimentary it doesn't even have tissues or nerves — branched off the animal family tree before any other lineage, making it a relic of the very first animal on earth.

A decade later, as a postdoctoral researcher, he was working on a multi-university collaboration called the Tree of Life, to piece together the phylogeny — that branching tree of evolutionary history — for all flowering plaTree of Life, to piece together the phylogeny — that branching tree of evolutionary history — for all flowering platree of evolutionary history — for all flowering plants.

Our results show that only a limited branch of the yeast evolutionary tree is currently used in winemaking.»

«And rather than fight about it, we made an evolutionary tree and looked at what percentage of branches was lost.»

They found that 33 percent of all the branches in this evolutionary tree are gone — El Copé has lost 33 percent of the total history of all its amphibians.

This results in solutions to some basic questions about how activators work, but also the use of the thermophile system uncovers some unexpected variation, illustrating how a fundamental mechanism can be elaborated in different branches of the evolutionary tree.»

It took more than two years to strip the stone from the whale skull, and when he did, «there before me was what looked like an entirely new branch on the evolutionary tree of whales.»

The new study evaluates this issue by measuring and comparing the rates at which teeth and brains have evolved along the different branches of the human evolutionary tree.

With large amounts of data backing up each evolutionary branch on the turtle tree of life, scientists are able to compare their evolution not only across species, but also across each continent's corresponding fossil records.

Because they don't have any obvious bilateral symmetry — unlike most animals — the two Dendrogramma species must sit on one of the lowest branches in the animal evolutionary tree, occupied by the few animals that lack this symmetry.

They belong somewhere in the lowest branches of the animal evolutionary tree, perhaps related to jellyfish or another primitive group called the comb jellies.

What is agreed is that Dendrogramma belongs somewhere in the very lowest branches of the animal evolutionary tree.

A Tel Aviv University researcher was part of the team that released findings Thursday showing that the human evolutionary tree has fewer branches than originally thought, based on a 1.8 - million - year - old skull found buried under a medieval Georgian village.

Since then, the genomes of a dozen microbes have been sequenced, including at least one from each of the three main branches of the evolutionary tree.

Following in the footsteps of Charles Darwin, they grow phylogenetic trees — branching diagrams that depict lines of evolutionary descent back to a common ancestor.

This gap in knowledge led to a debate over the shape of the mammalian evolutionary tree: Did haramiyids belong on the crown mammal branch, from which all modern mammals descend, suggesting that mammals began to diversify more than 210 million years ago in the Triassic?

These proteins are found on every branch of the evolutionary tree from yeast to humans, and they play crucial roles in controlling the delivery of molecular messages inside cells.

Stromatolites may hold the key to determining one of the most important questions in evolutionary biology, how and when the tree of life branched into the three domains, the Bacteria, Archaea and Eukarya.

The evolutionary tree is drawn to scale, with branch lengths in units representing the number of amino acids substituted per site.

Megafauna like the mastodon, wooly rhinoceros, or the saber - toothed tiger lived on every continent until the Pleistocene epoch, about 125,000 years back, when the human branch of the evolutionary tree spread from Africa to other continents.

Back in the wild and wacky 19th century, some scientists held a notion called recapitulation theory, which claimed embryonic development followed the branches of an organism's ancient evolutionary tree, from, say, fish to lizard to dog to human.