?

AP® Biology

Free Version

Upgrade subject to access all content

Moderate

Sequencing the Four Stages of Embryonic Stem Cell Development

APBIO-FLMNF1

There are four known steps in embryonic stem cell development. Embryonic stem cells are undifferentiated mitotic products within a blastocyst. These cells are described as pluripotent, capable of becoming any cell type for a specific organism, given the right molecular directives for selective gene expression. The stages are defined below, however, are not in the correct order in cell development.

I. Morphogenesis: the formation of the correct shape and placement of cells in tissues within organs of an organism.

II. Growth: the size increase of a cell as a result of cell division and cell enlargement.

III. Determination: established fate of a cell.

IV. Differentiation: the active transformation of developing cells into specialized and committed cell types.

Which of the following is the BEST sequence of events in embryonic stem cell development?

A

Morphogenesis, Determination, Growth, Differentiation.

B

Determination, Differentiation, Morphogenesis, Growth.

C

Growth, Determination, Differentiation, Morphogenesis.

D

Differentiation, Determination, Growth, Morphogenesis.