HRCT demonstrated marked mosaic pattern consistent with air trapping, as well as old calcified granuloma.
MASTR is a powerful tool that provides cell-type-specific (spatial) and temporal marking of mosaic mutant cells and is broadly applicable to developmental, cancer, and adult stem cell studies.
Marked mosaic patches ("clones") of cells lacking endogenous fz activity were generated in wings uniformly expressing the mutagenized transgene, and four characteristics were assessed: The levels and distribution of Fz protein produced by the transgene in otherwise fz mutant tissue.
In this assay, ovarioles that start out as mosaic (1 marked FSC) become fully marked (2 marked FSCs) or fully unmarked (0 marked FSCs) when the daughter of one FSC replaces the other FSC.
There are two alternative strategies that are currently used for marking clones: the β-galactosidase method and the MARCM (mosaic analysis with a repressible cell marker) method (Harrison and Perrimon, 1993; Wu and Luo, 2006).
Such a pattern of evolution is termed mosaic and is a common phenomenon in those transitions marking the origin of major new adaptive types.
Discounted items include hand-pressed ceramic wall tile and 18-inch-square tumbled-marble tiles (both reduced from $12 to $4 a square foot), as well as Bisazza glass mosaic tile (marked down from $25 to $3 a square foot), above.
Thus the mosaic cellular distribution of mtDNA in fibroblast cultures A D was characteristic, differing from all other fibroblasts examined and marking them out as a distinctive subgroup.
As the Times's Timothy Egan observed in his recent series marking the 200th anniversary of the Purchase, as well as Jefferson's decision to send Lewis and Clark to explore it, only "tattered scraps of once-splendid mosaics" remain.
A highly versatile technique has been developed in mouse: MASTR (mosaic mutant analysis with spatial and temporal control of recombination), which utilizes the increasing number of floxed alleles and simultaneously combines conditional gene mutagenesis and cell marking for fate analysis.
Among germline techniques for cell marking, 'mosaic analysis with a repressible cell marker' (MARCM) in Drosophila, and its cousin 'mosaic analysis with a double marker' (MADM) in mice, are conceptually the most general as they produce a sparse collection of cells distinguished by the exchange of a pre-defined chromosome arm that can carry an arbitrary set of genetic markers [11], [12].
