Sentences with phrase «identical cells called»

After five or six days, the embryo is composed of a cluster of identical cells called a blastocyst.

Not exact matches

The shape and chemical composition of these granules is identical to organelles found in cells called melanosomes; these being responsible for creating and storing the pigment melanin.

The researchers believe the hammerhead shark reproduced by a type of asexual reproduction called automictic parthenogenesis, whereby an unfertilised egg is activated to behave as a normal fertilised egg by a small, nearly genetically identical cell known as the sister polar body.

But in a process called asymmetric division, a cell divides into two daughters that are not identical — a skin stem cell divides into another skin stem cell and a regular skin cell, for example.

They then coaxed these induced pluripotent stem cells, which are genetically identical to the patients» cells, to develop into two separate groups of nerve cells: neurons and what are called astroglial cells.

All people have two copies of every gene, and earlier work by the researchers on identical twins with leukemia indicates that a second genetic alteration - involving the second copy of the TEL gene, one of the two so - called «alleles» — occurs post-natally to actually nudge blood cells into a leukemic state.

iPS cells are virtually identical to human embryonic stem cells (also called hESCs), which this column has discussed previously, except for their origins.

For a variation to be called a minority SNP, the nucleotide change had to be identical to the cell line - associated SNP, with a minimum coverage of 30 and minimum variant frequency of 3 % at that position.

Furthermore, the gene - activity profiles of the first - generation iPS cells were similar, but not identical, to those of ES cells — and chemical marks called methyl groups on the DNA did not exactly reflect those on ES cells either.