IB Biology SL B2.3.1 Differentiation After Fertilization Questions

Explore how genetically identical embryonic cells activate different genes and respond to signalling gradients to form specialized cell types in IB Biology SL B2.3.1.

Exam points

Explain that cells from one zygote retain the same genes but differentiate when different genes are expressed or suppressed.
Identify cell differentiation as the outcome when unspecialized embryonic cells experience gradients of signalling chemicals.

[Maximum number: 1]

What results from an unspecialized cell experiencing gradients of signalling chemicals?

Cell differentiation

Meiosis

Saltatory conduction

DNA replication

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IB Biology SL B2.3.1 Differentiation After Fertilization Questions question 1