blastopore उदाहरण वाक्य

उदाहरण वाक्य

1. During gastrulation in both invertebrates and vertebrates, apical constriction of a ring of cells leads to blastopore formation.
2. In many animals the blastopore, an opening in the surface of the early embryo, tunnels through to form the gut.
3. Inhibition of GSK-3 translation by injection of antisense mRNA may cause a second blastopore and a superfluous body axis to form.
4. The story is a little more complex, because the blastopore itself does not directly give rise to the mouth of these worms.
5. The distinction between protostomes and deuterostomes is based on the direction in which the mouth ( stoma ) develops in relation to the blastopore.
6. Once epiboly is complete, the DEL, EVL, and YSL have engulfed the yolk cell, forming a closure known as the blastopore.
7. The deuterostome mouth develops at the opposite end of the embryo from the blastopore and a digestive tract develops in the middle, connecting the two.
8. As in all deuterostomes, the blastopore becomes the anus whilst the gut tunnels through the embryo to the other side where the opening becomes the mouth.
9. During the gastrula stage, once the blastopore has formed, the PMCs are localized within the prospective ventrolateral ( from front to side ) region of the blastocoel.
10. Following ingression, a blastopore develops where the cells have ingressed, in one side of the embryo and it deepens to become the archenteron, the first formative stage of the gut.