Why do some genetic mutations lead to completely nonfunctional proteins while others do not affect the functioning of the resulting protein at all?

would a nonsense mutation at the beginning of the gene, or at the end of the gene, have a greater effect on the shape of the protein produced?

The structural portion of genes contains two distinct types of regions—exons and introns. Which consists of codons that are eventually translated into the amino acid sequence of a protein, and which consists of codons that are not expressed?

what happens if a mutation causes a tRNA to be charged with the wrong amino acid?

What is translation?

What characteristic of the genetic code explains why a substitution mutation in a codon contained within a protein coding gene does not always result in a replacement of one amino acid for another?

How many base-pairs would have to be deleted in a mutational event to eliminate a single amino acid from a protein and not change the rest of the protein? You must enter a whole number (no text)

What general structural feature is shared by proteins that specifically form homodimers (but not homotrimers, homoteramers etc)? Only one answer is correct.     the surface consists of hydrophilic alpha-helix.   the surface is highly modified by post-translational modification.   the surface is permanently bound by chaperones.   the surface is unstructured.   the surface, or part of it, is self-complementary.

A mutation leads to a change in one amino acid in a protein. The result is that the protein no longer functions properly. How is this possible?

Which type of mutation results in abnormal amino acid sequence?