Sentences with phrase «identical cell known»

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.

Not exact matches

In the current paper, knowing that MYC, a transcription factor that binds the genome through sites that are identical to the binding sites of BMAL1, the team hypothesized that aberrant MYC expression perturbs the clock by deregulating components of the circadian network in cancer cells.

«We have found that the individual cells within melanoma tumors are not all identical, and tumors contain a sub-population of cells that are inherently drug resistant, which accounts for the fact that advanced melanoma tumors return no matter how much the tumor is depleted,» said Meenhard Herlyn, D.V.M., D.Sc., professor and director of Wistar's Melanoma Research Center.

Only a small subpopulation of cells are capable of picking up DNA, a state known as «competence,» at any given time, even when the cells are genetically identical and grown under the same conditions.

One way around that problem is to work with another kind of 3D cell culture known as a spheroid, which hasn't yet gone too far down the path of development and still contains mostly identical, similarly differentiated cells.

HGH is biologically identical in structure to somatotropin, a polypeptide protein produced in the anterior portion of the pituitary gland by cells known as somatotrophs.