Gene, zygotic lethal — A gene that is lethal (fatal) for the zygote, the cell formed by the union of a sperm (male sex cell) and an ovum (female sex cell). The zygote would normally develop into an embryo, as instructed by the genetic material within the unified cell.… … Medical dictionary
Zygotic lethal gene — A gene that is lethal (fatal) for the zygote, the cell formed by the union of a sperm (male sex cell) and an ovum (female sex cell). The zygote would normally develop into an embryo, as instructed by the genetic material within the unified cell.… … Medical dictionary
Dominant white — This dominant white Thoroughbred stallion (W2/+) has one form of dominant white. His skin, hooves, and coat lack pigment cells, giving him a pink skinned white coat. Dominant white is a group of genetically related coat color conditions in the… … Wikipedia
Self-incompatibility in plants — Self incompatibility (SI) is a general name for several genetic mechanisms in angiosperms, which prevent self fertilization and thus encourage outcrossing. In plants with SI, when a pollen grain produced in a plant reaches a stigma of the same… … Wikipedia
Nodal signaling — is a signal transduction pathway that is important in pattern formation and differentiation during embryo development.[1] The nodal family of proteins, a subset of the transforming growth factor beta (TGFβ) superfamily, is responsible for… … Wikipedia
Fungus — Fungi redirects here. You may be looking for Fungi (music) or Fungus (XM). Fungi Temporal range: Early Devonian–Recent (but see text) … Wikipedia
