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Molecular basis of organ differentiation depends on the modulation in transcription by:

1. ribosome
2. transcription factor
3. anticodon
4. RNA polymerase

Correct answer: transcription factor

Solution

Transcription factors are the main proteins that modulate transcription by binding specific DNA sequences and activating or repressing target genes. Different patterns of transcription factor activity produce different cell types and organs during development.

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