Consider figures 4.6 and 4.8. In the text Which of the following statements regarding rostral-caudal patterning in the developing nervous system is true regarding the most caudal area of the neural tube?

Question

Quizplus · Accepted Answer

In the most caudal area of the neural tube, many Hox genes are expressed, and retinoic acid concentrations are high. This is because Hox genes play a crucial role in specifying the identity of different regions along the anterior-posterior axis of the developing nervous system, and retinoic acid acts as a signaling molecule that helps regulate the expression of these genes. High concentrations of retinoic acid in the caudal region help establish the correct patterns of Hox gene expression necessary for proper development of this area.

Consider Figures 4