$1.$ Multiple$-$choice

Shown below is a list of statements $(\backslash ($ a$-$k $\backslash ))$ and types of mutations $(1-6).$ On the blank line following each mutation, write the letter$($s$)$ of all statements that apply to that type of mutation. Note that each statement may be used more than once and each type of mutation may have more than one correct statement $(10$ points$).$

a$)$ a mutation that changes UUA to UUG

b$)$ a mutation that gives methionine instead of leucine

c$)$ created by the addition of a nucleotide to a coding region

d$)$ a stop codon is read as an amino acid

e$)$ a chemically similar amino acid is replaced by the mutation

f$)$ a mutation that changes CCU to ACU

g$)$ deletion of a nucleotide in a coding region gives this type of mutation

h$)$ mutation does not alter the peptide

i$)$ a mutation changing UAU to UAG

j$)$ premature termination codon is responsible for this mutation

k$)$ a chemically different amino acid is replaced by the mutation

$1)$ missense mutation

$2)$ silent mutation

$3)$ frameshift mutation

$4)$ nonsense mutation

$5)$ synonymous mutation

$6)$ nonsense suppressor mutation