Which statement about development is true?
A) Cell death does not play a role in morphogenesis.
B) Differential gene expression plays an important role in determining cell fate.
C) Throughout development,especially in animals,the range of possible cell fates becomes progressively less restricted.
D) The developmental potential of early embryonic cells is narrower than the potential of cells from more advanced embryos.
E) Cell fate is determined only by informational molecules within a cell and not by signals from surrounding cells.

Question

Quizplus · Accepted Answer

Differential gene expression is the process by which genes are expressed differently in different cell types, leading to the development of specific cell fates. This is a critical mechanism in development. A, C, D, and E are all incorrect statements. Cell death, or apoptosis, plays a crucial role in sculpting tissues and organs during morphogenesis. The range of possible cell fates becomes increasingly restricted as development progresses, as cells become more differentiated and committed to specific fates. The developmental potential of early embryonic cells is actually broader than the potential of cells from more advanced embryos, due to the process of cell differentiation. Finally, cell fate can be influenced by signals from surrounding cells, including paracrine and juxtacrine signaling.

Which Statement About Development Is True