A site where RNA-polymerase can bind to begin transcription is called A
the lac operon.
В.
a promoter.
C с
an operator
D. a Hox gene.

B

Explanation:

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when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave