Sentences with phrase «over several generations»

By removing one element from this diet at a time, it is possible to study the effects of these omissions if necessary over several generations of animals.

And they have to breed over several generations to have predictability in results.

The change may be slow, but may ultimately be linked to the changes in attitude that occur over several generations.

They certainly have had an effect in the past, and perhaps over several generations, these could shape some new directions.

The researchers then showed that new environmental conditions, such as a different ambient temperature, can affect the expression of epigenetic information over several generations, but they do not erase this information.

Because infectious microbes reproduce quickly and have enormous populations, changes in their genetic makeup over several generations can show up in just a few days.

Once released, games often improve over several generations through downloaded software patches and new editions.

Usually disease genes are discovered by first collecting blood from large families with many members, spread over several generations, who suffer from a disease.

He conducted his research with two groups of cats over several generations, feeding one group exclusively raw foods, and the other group exclusively cooked foods.

Some breeders have selected for the characteristics they want over several generations.

It is a very useful tool when dealing with simple biological beings, but for animals such as dogs, you are inevitably create a problem over several generations.

I could never figure out how these homes magically came together over several generations.

Over several generations of selection away from the disease gene, breeders can eliminate a disease gene completely from their line.

The Rusalka variety has come about over several generations of selection by the grower who chose a particular pod phenotype at each successive grow - out.

We are very proud of our outstanding 30 + year tradition of raising thousands of parrots over several generations at HARI.

We are very proud of Tropican's outstanding 25 - year tradition of raising thousands of parrots over several generations at HARI.

A purebred dog is one that has been bred over several generations from parents belonging to the same breed — this is also referred to as «true» breeding because the puppies all exhibit similar characteristics and temperaments to the parent dogs.

There is a big difference, one group live by the income they generate from working many hours per day while the other generate income from accumulate wealth over several generations and many times exploration of labor.

For instance, the long range destructive effects of certain kinds of diet or of certain kinds of activity might not be observable except over several generations.

The milder version was obtained by crossing the Yucatan habanero pepper with a heatless habanero from Bolivia over several generations.

Where we have lost the art of breastfeeding over several generations, new mothers» nursing attempts can be easily sabotaged by misinformation.

By assembling family trees over several generations of over 10,000 individuals, they could sort out how much of the variation in a trait is due to genetic influences and how much is due to environmental influences, and how the determinants of key traits for evolutionary success may have changed over the modernisation of society.

Pandemic level 5 means there are various foci of community transmission over several generations.

This gene was among several that led Gregor Mendel to establish the basic laws of genetics in the 19th century while studying the characteristics of peas over several generations.

Summary: A robot butler becomes human over several generations, even replacing his mechanical pieces with lab - grown organs.

It also called for more research on animals to test the safety of ICSI over several generations.

The convergence of these genetic factors over several generations might clarify the increased AD penetrance and the autosomal dominant - like inheritance pattern of AD as observed in this family.

When geneticists look for evidence of genetic influence on a disease, such as heart disease or mental illness, they look for families that have many affected over several generations.

In this experiment, they were able to prove that the temperature treatment changes the eye colour of this specific strain of fly, and that the treated individual flies pass on the change to their offspring over several generations.

Inherited genetic changes, called gene mutations, pass from parent to child over several generations, increasing risk for hereditary cancer.

But when Asian women immigrate to the United States, their breast cancer risk rises over several generations.

Two details remain the same as before, however — the use of quad tailpipes, and matching quad tail lights that have defined GT - R models over several generations.

I think Corvettes, certain Ferraris, Mustangs, Camaros, BMWs, MBs have recognizable DNA over several generations.

«An assured fiction debut... Like Richard Russo's novel Empire Falls, it smartly dissects and dynamics of small - town relationships and the interplay between prominent families and the less powerful over several generations... carefully constructed... you'll fall for «Swan.»

When this occurs repeatedly over several generations, the animals, while still purebred, can be of extremely low quality.

Instead of doing it once in a blue moon, they inbred their Bulldogs over several generations.

Belyaev observed that as these wild foxes were selectively bred for tameness over several generations, other characteristics changed profoundly too.

In dog breeding, a bloodline is a kennel «s set of dogs that share some blood but also characteristics over several generations.

Over time, the Houston CALL Project will help tell the story of an arts community that has strengthened over several generations since the mid-20th century and how the lives of its artists contributed to its vibrancy and Houston's cultural legacy.

The exhibition presents works by fourteen artists of European and American provenance over several generations who operate in terms of both form and contents between a conceptual reception of painting and an investigation of influences from the mass media.

Throughout Noise, she plays over several generations of similar taped images and soundtracks to introduce increasing amounts of distortion.

'' [O] ur findings indicate that robbing and bartering is a good candidate for a new behavioural tradition defined as a group - / population - specific practice, socially transmitted among at least some group members, persistent over several generations, and possibly locally adaptive,» the team writes in their paper, published in the journal Primates.

According to Shin, Samsung has learned over several generations of Galaxy device what customers value the most: a simple yet powerful camera, faster and seamless connectivity, and to stay fit.

The Rusalka variety has come about over several generations of selection by...

Over several generations the skeletons automatically «evolve» into better walkers.

New stars incorporate this debris, and over several generations, enough metals build up to form the rocky grains thought to assemble the cores of all planets.

So, when native colonies were perturbed — their docile - to - aggressive ratios thrown out of whack — they, somehow, sensed this as an extinction risk, and, over several generations, readjusted their ratio back to normal.

The Verso name is familiar to Japanese and European buyers who have had their choice of a Corolla Verso or a Yaris Verso, over several generations, for a little under a decade.