A geneticist finds that a strain of bacteria to produces a non-functional sigma factor. Which among the following steps in transcription would most likely be first affected? Assembly of RNAP onto the DNA strand
Identification and binding of RNAP on to the promoter sequence
Conversion of open initiation complex to closed initiation complex
Synthesis of RNA after the formation of open initiation complex

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.