Spatial numerical association in three-day-old domestic chicks linearly decreases as numerical magnitude increases (2>5>8), supporting the hypothesis that numerical magnitude guides the spatial numerical association.
A molecular atlas of the chick retina provides a comprehensive classification and characterization of 136 cell types, yielding novel insights into retinal structure, function, development, and evolution.
Chromatin remodeler Hmga1 has two separable functions in neural crest development, first neural crest specification at the neural plate border and later in Wnt-dependent emigration from the neural tube.
The number of different peptides presented by major histocompatibility complex class I molecules to the immune system's T lymphocytes is inversely correlated with cell surface expression and is strongly associated with the response to infectious disease.
The collinear activation of a subset of posterior Hox genes is responsible for establishing a Wnt/T activity gradient that is required to generate the complete body axis, and hence the full set of segments within a vertebrate embryo.