Question

question 5 of 10
what kind of mutation does the diagram show?
original
a t g c a g g
mutant
a t g g a g g
a. frameshift
b. insertion
c. deletion
d. substitution

Explanation:

Step1: Analyze each mutation type

• Frameshift: Caused by insertion or deletion, shifts reading frame.
• Insertion: Adds nucleotides.
• Deletion: Removes nucleotides.
• Substitution: Replaces one nucleotide with another.

Step2: Compare original and mutant sequences

Original: A T G C A G G
Mutant: A T G G A G G
Here, the 'C' in original is replaced by 'G' in mutant. This is a substitution as one nucleotide is swapped for another without adding or removing nucleotides (so no insertion/deletion) and since only one nucleotide is changed, it doesn't cause a frameshift (which would require insertion/deletion).

Answer:

D. Substitution