In this activity, you will examine three different mutations. drag the white labels to the white targets to indicate what each mutant mrna codon codes for. (you will probably need to consult the codon table for mrna .) drag the pink labels to the pink targets to indicate the type of mutation. drag the blue labels to the blue targets to indicate the effect on the polypeptide's primary structure. labels may be used once, more than once, or not at all.

A) Val
b) Substitution
c) missense
d) Glue) Substitution
f) Silent
g) Stop
h) Substitution
i) nonsense

This is the following answer in the activity that examine three different mutations. The white labels to the white targets to indicate what each mutant MRNA codon codes for is the label a to c. The pink labels is d to e. And the blue labels are g to i.

You'd want to examine homologous structures in fossil remains. This can give a geologic time scale of evolution within certain fossil groups. Without fossil remains a person would not be able to consider the majority of life that has existed on Earth but is now extinct. Fossil evidence can give a general timeline for the common ancestor or origin or homologous structures as well as how they have changed since then.