Sentences with phrase «removed older fish»

Not exact matches

Embryos are currently selected on the basis of appearance, while some 3 - day - old embryos are also screened using pre-implantation genetic diagnosis (PGD), in which a cell is removed from the embryo and the chromosomes examined by staining them using a technique called fluorescence - in - situ - hybridisation (FISH).

Like a cork removed from a champagne bottle, the early break up in these passages is allowing thick, old sea ice to flow south from the Arctic Ocean into the North Atlantic, choking areas used by fishing, shipping and ferry boats.