As compared to the original mutation, a suppression mutation occurs

As compared to the original mutation, a suppression mutation occurs
A.  in the homologous allele of the same gene.
B.  at the same site.
C.  in another nonhomologous gene.
D.  in a different codon of the same gene.
E.  in another site of the same codon.


Mutation is random with respect to the structure and function of a gene. As a result,
A.  the effects of a particular mutation cannot be predicted.
B.  mutations are likely to impair the function of a gene.
C.  mutations are equally likely at every nucleotide of the gene.
D.  mutations invariably destroy the function of the gene.
E.  mutations are likely to improve the function of a gene.


Genes that are on opposite ends of a long eukaryotic chromosome
A.  never recombine.
B.  show less than 50% recombination.
C.  show exactly 50% recombination.
D.  show between 50% and 100% recombination.
E.  show 100% recombination.