Normal hemoglobin dna - cacgtggactgaggactcctc what is the normal hemoglodin acid- normal hemoglobin a. a sequnce for figuring out rna a binds with u c binds with g

I take it this is the "normal" hemoglobin sequence (or at least a small part of it - the real gene is much much longer)

I like to space things out to keep track in 3's

DNA
CAC GTG GAC TGA GGA CTC CTC

The resulting mRNA is:
CAC GUG GAC UGA GGA CUC CUC

The amino acid sequence (you need a codon table to find this) - I will put 3 letter code under the codons from the mRNA:

CAC GUG GAC UGA    GGA CUC CUC
HIS  VAL   ASP  STOP  GLY  LEU  LEU

With the stop codon in here, this is the mutated gene - that causes sickle cell anemia. 

They create genetic variations

The answer is joseph is observing the colour of the reaction mixture to see whether proteins are present in the given solution.