Sentences with phrase «without cell nuclei»

Not exact matches

OAR proponents claim that when the altered donor - cell nucleus with its activated nanog gene is transferred to the enucleated oocyte (egg cell), the presence of nanog will immediately convert the enucleated egg cell to a pluripotent cell, without ever forming a zygote.

Molecular biology, contrary to the article, does not support evolution by natural chance because evolution can not occur without inheritance, inheritance can not occur without DNA and DNA is so complex it could not have evolved by chance unless we are to assume that molecules just happened to arrange themselves into the DNA molecule at the same times as a nucleus formed to hold the DNA, at the same time as the cell membrane just happened to form around it, at the sametime as all the cell maintaining process in the cytoplasm just happened to come into existence to form a single cell and that all these aspects just happened to come together and work harmoniously.

Should the ANT - OAR proposal work, the alterations made to the adult nucleus will ensure that the cell produced by ANT - OAR enters immediately into a restricted, pluripotent state, without ever generating a totipotent embryo.

In somatic cell nuclear transfer, a nucleus from a mature body cell is transplanted into an egg cell without a nucleus.

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

To create cloned mice, the team inserted nuclei from so - called cumulus cells, which surround the ovary, into egg cells, or oocytes, without nuclei.

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?»

Whether it's stuffing DNA inside the nucleus or cramming energy - generating machinery into the rod - shape organelles called mitochondria, biology separates tasks into specialized compartments within cells to make it easier to do specific jobs without interference.

Although the evidence was subsequently contested, some single - celled microbial life lacking a nucleus that segregates their internal DNA or RNA («prokaryotes») from the surrounding cytoplasm may have flourished in darkness within cracks in Earth's seafloor crust and around deep, warm or boiling hot ocean springs (hydrothermal or volcanic vents, such as at Lost City or at black smokers) without a need for light or free oxygen in the oceans or atmosphere.

In addition, recent findings about large DNA viruses have led to hypotheses about the role of RNA and DNA viruses as precursors to single - celled microbes with and without nuclei, and giant viruses as the descendants of eukaryotes through reductive evolution (Charles Siebert, Discover, March 2006; and GiantVirus.org).

The team's work, published in 2014, used staining and epiflourescence to find the nucleus in chicken egg cells and then successfully removed it without damaging the egg cell's membrane.

Red blood cells are recycled here; platelets (a small colorless disk - shaped cell fragment without a nucleus, found in large numbers in blood and involved in clotting) and white blood cells (less technical term for leukocyte which include lymphocytes, granulocytes, monocytes, and macrophages) are stored in the spleen.

microbes known as archaea (primitive unicellular organisms that live in most extreme environments), bacteria (unicellular organisms without nucleus or cell Mobile Spy cell phone monitoring software monitors your child or employee's smartphone activity on Android - based smartphones and tablets.