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7. Autonomous cell specification is most likely to occur via the: a) response to signals received...

7. Autonomous cell specification is most likely to occur via the:

a) response to signals received from nearby cells/tissues.

b) response to transcription factors received from nearby cells/tissues.

c) asymmetric inheritance of cellular determinants such as transcription factors and signal transduction pathway components.

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C. asymmetric inheritance of cellular determinants such as transcription factors and signal transduction pathway components

In autonomous specification, a developing cell becomes a cell carrying out a specialized function without receiving external signals. This type of specification results from cell‐intrinsic properties and usually occurs after asymmetric cell division, during the patterning of invertebrate embryos.

Three types of embryonic specification have been distinguished: autonomous cell fate specification, conditional specification and syncytial specification.

Conditional specification is a cell‐extrinsic process that relies on cues and interactions between cells. Syncytial specification is a hybrid of the autonomous and conditional specification that occurs in insects.

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