Sentences with phrase «over the course of evolution»

The gene that determines the sex of the bees is much more complex than has been assumed up until now and has developed over the course of evolution at a very high rate.

What's more, the template for our bodies has changed over the course of our evolution and is still changing today.

He was already researching how the tail in birds first got shorter and then disappeared over the course of evolution.

But in recent years, it's become clear that these organisms simply lost their mitochondria over the course of evolution.

Summary: Extremely powerful genes that govern the shape of an embryo from the earliest stages of development have been tinkered with by nature over the course of evolution to create the enormously wide range of animal forms, scientists report in the August 14, 1997 issue of Nature.

In today's issue of Cell, a team reports that it has found in mice and humans a close relative of a fruit fly clock gene — the first evidence that some of these genes may have been conserved over the course of evolution.

It turns out leeches have already figured out how to prevent clots over the course of their evolution.

Their discovery, published in the journal New Phytologist on February 24, 2017, sheds light on a question that much intrigued Darwin: the appearance of a structure as complex as the flower over the course of evolution.

«It's interesting to think about whether this flexibility may have been adaptive over the course of evolution,» says Turnbaugh.

Now, researchers reporting in Current Biology on August 24 think they know why that call feature has arisen multiple times over the course of evolution: it improves the ability of listeners to detect call components that provide important identifying information about a caller.

She hopes to pinpoint which genes are expressed in each cell type when brain cells make long distance connections, and to make similar maps in other primates to chart what changed as brains rewired over the course of evolution.

79 Worm Lives Without Guts Over the course of evolution, a bizarre little worm appears to have lost its mouth, guts, and excretory organs...

Together with colleagues from Canada, Assistant Professor Dr Suat Özbek and Prof. Dr Thomas Holstein have discovered that the two organisms developed similar miniature weapons for prey capture over the course of their evolution, although they share no common genetic basis.

These layers were then variously retained, reduced or lost in different vertebrate linages over the course of evolution.

«We had expected that some beewolf symbionts evolved new antibiotics to complement their arsenal over the course of evolution in order to help their hosts combat new or resistant mold fungi,» Tobias Engl from Mainz University, the first author of the study, said.

The remarkably well - preserved fossil of an extinct arthropod shows that anatomically complex brains evolved earlier than previously thought and have changed little over the course of evolution.

Others argue that diet - specific lineages have been independently acquired from the environment over the course of evolution — so - called horizontal transmission.

By nested hierarchy I mean a way of looking at the brain, looking at its layers and how they developed over the course of evolution.

Extremely powerful genes that govern the shape of an embryo from the earliest stages of development have been tinkered with by nature over the course of evolution to create the enormously wide range of animal forms, scientists report in the August 14, 1997 issue of Nature.

What I find most interesting is the idea that the embryonic tissue that goes on to form limb and the motor neurons is regulated by coordinated molecular mechanisms — under the guidance of a genetic program that has been conserved over the course of evolution.

Over the course of evolution, some duplicate genes are short - lived, losing functionality and ultimately being removed.

We employ similar pathways to shape our parts as embryos, but over the course of evolution, humans may have lost the ability to tap into it as adults, perhaps because the cell division required for regeneration elevated the likelihood of cancer.

Instead phrases like «the scrub jay wants to do this, decides that this is the right time,» and so on, are shorthand for the more correct but cumbersome, «Over the course of evolution, scrub jays who, at least in part through genetically influenced mechanisms, are better able to optimize the timing of their behavior leave more copies of their genes, thus making this attribute more prevalent in the population.»

Over the course of evolution, Olavius algarvensis, a bizarre little worm living in sediments along the Mediterranean, appears to have lost its mouth, guts, and excretory organs.

Researchers of Ludwig - Maximilians - Universitaet (LMU) in Munich now reveal that such selective interactions can break down over the course of evolution.

We often think of bones as a stiff scaffold that everything else hangs on, but anatomists know that soft tissues actually morph bones as an animal grows, and over the course of evolution.

First, they show that over the course of evolution, behaviors might be conserved, but the underlying neural basis for the behaviors could shift.

Over the course of evolution, plants have developed mechanisms to adapt to periods of inadequate water, and as any gardener can tell you, some species are better able to handle drought than others.

Over the course of evolution, organisms have developed variations in their cell cycle programs to be able to generate and maintain a plethora of different cell types and tissues.

With no tell - tale signs of whole genome duplication, the researchers say, the octopus must have instead duplicated specific regions of its genetic code — and acquired totally novel genes — over the course of its evolution.

This reunion of biological sub-disciplines enables scientists to understand gene functions that are the basis for the elaborated chemical responses to environmental stimuli that native plants have developed over the course of their evolution.

Over the course of its evolution, the Maine auto insurance industry has developed a complex system for assigning a risk value to each of its potential clients.