Question

"Which of the following is typified by an epithelialmesenchymal transition or EMT?

a) formation of the mesoderm during gastrulation in a chick or mammalian embryo
b) cells breaking away from a from a cohesive epiblast
c) fusion of sperm and egg
d) formation of cartilage

Answer 1

Epithelial-mesenchymal transition or EMT is typified by cells breaking away from a cohesive epiblast during gastrulation in a chick or mammalian embryo.

This transition is important for the development of various structures in the embryo.

Step-by-step explanation:

Epithelial-mesenchymal transition or EMT is typified by cells breaking away from a cohesive epiblast.

During gastrulation in a chick or mammalian embryo, the mesoderm is formed from the process of EMT where cells from the epiblast migrate and detach, giving rise to the mesodermal germ layer.

This transition is important for the development of various structures in the embryo, including the skeleton, muscles, connective tissue, heart, blood vessels, and kidneys.