The diagram below shows part of the process of dna transcription. which mrna base will go in location 1?     a.uracil  b.cytosine  c.adenine  d.thymine

You did not include the diagram, but the answer is very easy to figure out. The  mRNA base that will go in location 1 depends on the DNA base in location 1:

If the DNA base is Adenine (A), the mRNA base will be Uracil (U)
If the DNA base is Thymine (T), the mRNA base will be Adenine (A)
If the DNA base is Cytosine (C), the mRNA base will be Guanine (G)
If the DNA base is Guanine in (G), the mRNA base will be Cytosine (C)

Explanation:

a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.

"the power required to overcome friction and the inertia of the moving parts"