[Campbell Biology P.1105] Which of the following descriptions accurately characterizes the mo... | Practice Question

Which of the following descriptions accurately characterizes the morphogenetic movement known as convergent extension?

  • A: Cells forming wedge shapes along a ventral surface to drive invagination.
  • B: Cells 'crawling' through the embryo using cytoskeletal protrusions.
  • C: A sheet of cells becoming narrower while simultaneously becoming longer.
  • D: Individual cells, sets of cells, or whole tissues ceasing to develop and dying.

Explanation

The text defines convergent extension as 'a rearrangement that causes a sheet of cells to become narrower converge while it becomes longer extends '.