ANAT 381 Lecture Notes - Lecture 13: Heparin, Organogenesis, Repressor
18 Dec 2017
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Document Summary
3- axis development and organizers ii- anterior-posterior axis and left-right axis (continued) Almost never inherited, dextral and sinistral phenotypes in offspring are equally. Most individuals are asymmetrical in the same direction. Pictures of dorsal views (back) and ventral view of chick embryos within the first two days of development. we can see that it starts off being bilaterally symmetrical. Morphologically, some very subtle differences in early bilaterally symmetrical. Bilateral symmetry heart looping axial rotation. embryo, but don"t see significant asymmetry until the heart starts to loop. Heart cells migrate to the center of the embryo, form a linear heart tube, and the first asymmetric morphogenetic sign is shown by the arrow in the ventral view of the arrow. This is conserved in all species with heart looping. They are actually established way before any morphogenetic signs of asymmetry. These steps can be applicable to dv patterning and ap patterning as well.
