Sentences with phrase «whose nucleus»

«First Step» features a selection of 40 photographs, drawn from the museum's holdings (whose nucleus is a representative group of early Paul Outerbridge images), that traces the evolution of photography in California through works by some of its innovators: Edmund Teske, Robert Heinecken, Todd Walker, Lewis Baltz, Jo Ann Callis and Jerry Beurchfield.

Dolly was created using nuclear transfer, a technique in which an intact donor cell is fused with an egg whose nucleus had been removed.

The people whose nucleus accumbens lit up during the game also reported greater relief from the sham painkillers.

James Grifo of New York University has been given approval to try to treat infertile women by removing the nucleus from their egg and injecting it into a donor egg whose nucleus has been removed.

In this process, the nucleus of a donor adult cell is transferred to an egg whose nucleus, and thus its genetic material, has been removed.

For that matter, even when perfected, this method will always involve the destruction of a human embryo, the one whose nucleus is removed.

They selected cells that had taken up the DNA and placed them in contact with cow eggs whose nuclei had been removed.

In an accompanying paper, MacKinnon's team notes that scorpion toxin — a potent potassium channel inhibitor — has the same effect on pores in S. lividans and those of the fruit fly Drosophila, whose nuclei are organized similar to those of human cells.

One group was born from eggs whose nuclei had been replaced with genetic matter from a type of cell called a cumulus cell that surrounds the ovaries.

It is composed of two disc galaxies whose nuclei are currently just 13 000 light - years apart.

Northwestern researchers are analyzing tissue at the nano — as opposed to the micro — scale to root out cells whose nuclei have greatly expanded or otherwise show irregularities that could be signs of impending malignancy.

The researchers then transferred nuclei from nearly 1900 of the cultured cells into egg cells whose nuclei had been removed, eventually producing six calves.

Taking up this challenge, a team at Rudolf Jaenisch's lab at the Massachusetts Institute of Technology transferred the nuclei of olfactory neurons into egg cells whose nuclei had been removed.

The image shows a growing oocyte in the middle, which is very large with a bright green rim, surrounded by many small red follicle cells whose nuclei are stained blue.

In the center, FGFR - TACC fusion protein (red) can be seen disrupting tubulin bundles (green), structures that support cell division, or mitosis, at the point connecting the two daughter cells (whose nuclei are colored blue).

Here, FGFR - TACC (shown in red) can be seen interacting with tubulin bundles (green), structures that support mitosis, at the point connecting the two daughter cells (whose nuclei are colored blue).

The researchers know these particular Buckyballs are extraterrestrial because the noble gases trapped inside have an unusual ratio of isotopes, atoms whose nuclei have the same number of protons but different numbers of neutrons.

Not exact matches

The best filmmakers create a nucleus of people whose developed shorthand makes ever - richer projects spring to life.

The consensus on the evolution of primitive life is that simple life forms (prokaryotes, organisms whose cells lack a distinct nucleus) inhabited the Earth about 3 - 4 billion years ago, eukaryotic cells (those with a nucleus which contains the genetic material) emerging 2 - 3 billion years ago.

The system had come full circle: in flies, whose clocks are the best understood, the CLOCK protein — in combination with a protein encoded by a gene called cycle — binds to and activates the per and tim genes, but only if no PER and TIM proteins are present in the nucleus.

The advent of the nucleus — which differentiates eukaryotes (organisms whose cells contain a true nucleus), including humans, from prokaryotes, such as bacteria — can not be satisfactorily explained solely by the gradual adaptation of prokaryotic cells until they became eukaryotic.

This is the first eukaryote — organisms, like plants and animals, whose cells contain distinct nuclei — found without the machinery of mitochondria.

Experts take the cell nucleus of one human egg cell whose mitochondria have a defect and place it in an egg cell with «healthy» mitochondria.

The European Isotope Separation On - Line (EURISOL) facility, whose construction site has yet to be decided, will work with proton beams colliding with heavy target nuclei.

The researchers mapped the surface of the 4.8 - kilometer - wide comet nucleus, whose oblate shape resembles a homemade hamburger patty.

Most biologists typically recognize three official branches of life: the eukaryotes, which are organisms whose cells have a nucleus; bacteria, the single - celled organisms that may or may not possess a nucleus; and archaea, an ancient line of microbes without nuclei that may make up as much as a third of all life on Earth (See «Will the Methane Bubble Burst?»

The research team developed a new method called highly multiplexed single - nucleus sequencing (HM - SNS) to investigate CNA's clonal substructure and evolution in a cohort of 12 TNBC patients, whose tumors had been surgically removed prior to further therapy.

Prokaryotes — those organisms whose cells lack nuclei — don't have introns.

Like Dolly's creators in Scotland, Don Wolf of Portland's Oregon Health Sciences University and his colleagues transferred the nuclei from donor cells to eggs whose own DNA had been removed.

For over 40 years physicists have suspected this nucleus to exhibit an excited state whose energy lies only very slightly above that of its ground state.

At one end of the neuroepithelium, a region developed that was positive for markers of progenitors of granule and deep cerebellar nuclei projection neurons and negative for Purkinje - cell markers, and whose origins could be traced to the rhombic lip zone of the cerebellar plate.

The basic building blocks of the atomic nuclei are positively charged protons whose electric charge must be equal to the total charge of negative electrons in that atom.

Short - periodic Neptune - like planets are close or below this limit, and consequently transform into smaller and denser planets, whose transit detection still eludes us in most cases, CoRoT - 7b being the first possible member of the remaining population of nuclei of gas - planets that have undergone significant evaporation.

Rees is a cosmologist and space scientist whose research interests include galaxy formation, active galactic nuclei, black holes, gamma - ray bursts, as well as speculative aspects of cosmology such as the multiverse.

These were the eukaryotes — mainly plants and animals, whose cells had a nucleus — and the prokaryotes, such as bacteria, whose cells did not.

Researchers studying genome and cell biology provide evidence that heterochromatin organizes large parts of the genome into specific regions of the nucleus using liquid - liquid phase separation, a mechanism well known in physics but whose importance for biology has only recently been revealed.

Unlike typical eukaryotic organisms, Tetrahymena has two nuclei — a micronucleus that contains normal chromosomes and a macronucleus whose chromosomes are fragmented into thousands of small pieces of DNA that all encode the same ribosomal RNA gene.

SDSS studies have probed the dark matter environments of quasars through clustering measurements, revealed populations of quasars whose central engines are hidden by obscuring dust, captured changes in quasar spectra that show clouds moving in the gravitational grip of the central black hole, and allowed a comprehensive census of the much fainter accreting black holes (active galactic nuclei, or AGN) in present - day galaxies.

The male figure is the nucleus of the Arab family and a very important cultural pillar, whose absence is noticeable.

Its nucleus is a group of three friends whose goal is to claim space and respect for bicycles on the road.