Question

Which of the following point mutations would have little or no effect on cellular function? Select all that apply.

a. mutation from AUA to AUG

b. mutation in exon

c. mutation in intron

d. mutation in regulatory region

e. mutation from CUC to AUUU

f. mutation from UUA to UUG

(selected mutation in intron, mutation from UUA to UUG = 0.67/1 )

(selected mutation in intron, mutation from AUA to AUG = 0/1 )

Answer 1

The following mutation that have little or no effect are:

Mutation in introns because these are non coding region

Mutation in UUA to UUG because both Codon code for amino acid leucine.

Mutation from CUC to AUU because CUC code for leucine and AUU code for isoleucine and both amino acid have same physio chemical characterstics.

Hence, option