Ineed !

1.which of the following events would least likely cause a phenotypic change?
select one:
a. base substitution
b. base addition
c. base deletion

3.during the process of translation, "reads" the mrna.
select one:
a. a ribosome
b. ligase
d. helicase

8.the process of translation involves the cooperation of:
select one:
a. 64 possible combinations of bases and 20 possible amino acids
b. 124 possible nucleotides and 21 p[ossible amino acids
d. 4 combination of bases and 64 amino acids