Muscle contraction is initiated by a signal sent by the cent... — Re-NEET 2026 | Mockzy

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Muscle contraction is initiated by a signal sent by the central nervous system by the release of ________.

acetyl choline

acetyl coenzyme A

cyclic guanosine monophosphate

cyclic adenosine monophosphate

How many theca are present in each lobe of a typical dicot angiosperm anther?

Which of the following statements about lac operon is correct?

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