Embryonic Development Quiz

What are the five fundamental aspects of embryonic development?

• Growth, cleavage, pattern formation, morphogenesis, differentiation

• Cell proliferation, cell death, cell shape changes, gene regulation

• Cell division, cell movement, cell communication, cell differentiation

• Organogenesis, neurulation, differentiation, apoptosis

What is the process by which cells 'know' their position along a line with respect to boundaries at either end?

• Morphogenesis

• Cell signaling

• Positional information

• Cellular competence

What is the ability of a cell to respond to inductive signals called?

• Cellular competence

• Morphogenesis

• Positional information

• Cell signaling

Which of the following is NOT one of the essential cell behaviors for development?

• Cell proliferation

• Cell death (apoptosis)

• Cellular competence

• Cell shape changes

What is the plant product that inhibits smoothened signaling in the sonic hedgehog pathway?

• Patched

• Cholesterol

• Cyclopamine

• Gli3

What is the process by which adjacent cells receive and respond to a signal called?

• Gap junction

• Signal transduction

• Direct contact

• Diffusion

What is the mechanism by which cells interpret positional information and differentiate into different cell types?

• Cellular competence

• Cell signaling

• Positional information

• Morphogenesis

What is the term for the process of cells being assigned distinct characters according to their position?

• By cell association

• By lateral inhibition

• By cell signaling

• By positional information

What is the term for the process of cells being assigned distinct characters in random spatial arrangement?

• By positional information

• By cell association

• By lateral inhibition

• By cell signaling

What is the term for the process of distinct cell types sorting out to form a regular pattern?

• By positional information

• By cell association

• By lateral inhibition

• By cell signaling