The process in which a relatively unspecialized epithelial cell of the mammary placode becomes an epithelial cell at the periphery of the mammary gland bud. Cells at the periphery of the bud are larger that those of the surrounding epithelium and are arranged concentrically.

The process in which a cell of the mammary placode becomes a cell of the mammary gland bud.

The process in which a relatively unspecialized epithelial cell of the mammary placode becomes an internal epithelial cell of the mammary gland bud. Internal cells are small and of irregular shape.

The migration of a T-helper 1 cell from the blood vessels into the surrounding tissue. A T-helper 1 cell is a CD4-positive, alpha-beta T cell that has the phenotype T-bet-positive and produces interferon-gamma.

The migration of a CD8-positive, alpha-beta T cell from the blood vessels into the surrounding tissue.

The process in which a relatively unspecialized epithelial cell becomes a more specialized epithelial cell of the mammary gland.

The passage of a T-helper 1 cell between the tight junctions of endothelial cells lining blood vessels, typically the fourth and final step of cellular extravasation. A T-helper 1 cell is a CD4-positive, alpha-beta T cell that has the phenotype T-bet-positive and produces interferon-gamma.

The disruption of the bond between the sugar in the backbone and the C or T base, causing the base to be removed and leaving a depyrimidinated sugar.

The process in which the mammary gland bud grows along its axis.

An intracellular membrane-bounded particle found in fungi and containing chitin synthase; it synthesizes chitin microfibrils. Chitin synthase activity exists in chitosomes and they are proposed to act as a reservoir for regulated transport of chitin synthase enzymes to the division septum.

The cell adhesion process in which mammary mesenchyme cells adhere to one another in the initial stages of the formation of mammary fat development.

The process in which anatomical structures of the mammary gland buds are generated and organized. Mammary gland buds form by an outpocketing of the mammary placodes and grow to invade the mammary fat, when they form the mammary cord.

The morphogenetic process in which a bud forms from an epithelial sheet. A bud is a protrusion that forms form the sheet by localized folding.

The series of molecular signals initiated by a ligand binding to toll-like receptor 15.

The series of molecular signals initiated by a ligand binding to toll-like receptor 21.

The change in form (cell shape and size) that occurs when a posterior lateral line neuromast hair cell progresses from its initial formation to its mature state. A neuromast hair cell is a hair cell that acts as a sensory receptor of the neuromast; it is morphologically polarized as a result of the relative position of the single kinocilium and the clusters of stereocilia on its apical surface.

The change in form (cell shape and size) that occurs when a neuromast hair cell progresses from its initial formation to its mature state. A neuromast hair cell is a hair cell that acts as a sensory receptor of the neuromast; it is morphologically polarized as a result of the relative position of the single kinocilium and the clusters of stereocilia on its apical surface.

Repair of a DSB made between two repeated sequences oriented in the same direction occurs primarily by the single strand annealing pathway. The ends of the break are processed by a 5' to 3' exonuclease, exposing complementary single-strand regions of the direct repeats that can anneal, resulting in a deletion of the unique DNA between the direct repeats.

SDSA is a major mechanism of double-strand break repair in mitosis which allows for the error-free repair of a double-strand break without the exchange of adjacent sequences. The broken DNA searches for and base pairs with a homologous region in an intact chromosome. DNA synthesis initiates from the 3' end of the invading DNA strand, using the intact chromosome as the template. Newly synthesized DNA is then displaced from the template and anneal with its complement on the other side of the double-strand break.