Question

A molecule of mRNA with the sequence GGUCAUCACUAU experienced a

point mutation that caused the sequence to become GGUUAUCACUAU.
Which of the following terms describes this type of mutation?
Amino acids
Histidine
Tyrosine
UAU
Codons
CAU
Glycine
GGU
'GGC
GGA
GGG
CAC
UAC
O
A. Silent mutation
O
B. Missense mutation
C. Frameshift mutation
O
D. Nonsense mutation

Answer 1

The correct option is B) Missense mutation.

Step-by-step explanation:

A missense mutation can be described as a type of point mutation in which a mutation in a single nucleotide causes the codon to change and form a different type of amino acid. As in the above scenario, we can see that the code CAU coded for the amino acid, Histidine, before a point mutation occurred. After the point mutation, the codon was changed to UAU instead of CAU. UAU codes for the enzyme, tyrosine, instead of histidine.