What is the duty of the first responding officer?

the officer who responds first to the scene  has the responsibility to protect the public and the crime scene and control the changes made to the crime scene to the best of their ability.

Explanation:

The duty of the first responding officer is to protect the public, protect the scene of the crime, and control the changes made to the crime scene.

before it leaves the nucleus of a eukaryotic cell, mrna is altered in the following ways: - a cap is added to the 5' end of the mrna molecule; - a poly a tail is added to the 3' end; - introns are removed and exons are spliced together.

d. the weight of the book