Which option describes the function of RNA polymerase? Select one:

Carrying amino acids to the transcription site.

Moving mRNA strands into and out of the nucleus.

Splitting the DNA double strand into two single strands.

Forming an RNA strand using a DNA strand as a template.

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.