What process do neural crest cells go through in order to move away from the neural tube?

Arrange the following cell types in order from (1) greatest potency (totipotent), to least potency (5 - unipotent).

A researcher transplants a set of cells in X. Laevis that would normally develop into eye tissue to a site in a different embryo that would normally form muscle.  They observe that the transplanted cells develop into eye tissue, and not muscle. 

What was the state of the cells prior to transplantation?

Extraembryonic tissues are vital for development of an embryo. What is the main function of the amnion?

It provides a: 

If the growth cone of a motor neuron (neuron 1) makes a very weak synapse with a muscle fibre, near to a stronger synapse by neuron 2, what is the most likely outcome for neuron 1?

If the spiral arteries are only shallowly remodelled during placental development, what condition can arise? 

What cells of the placenta cover the surface of placental villi and bathe in maternal blood? 

During the process of cortical neurogenesis, the Cajal-Retzius cells regulate neural migration.  In which zone are the Cajal-Retzius cells located? 

During primordial germ cell development, which of the processes below is defined by expression of the Blimp1 gene?

Transplantation of tissue from one chick embryo to a more anterior region of another chick embryo results in the growth of thoracic vertebrae in the cervical region of the chick.  This experiment shows the transplanted tissue: