Question

two dna (top) and rna strands (bottom) are shown below. example 1 is the original. example 2 has a mutation. what kind of mutation is shown in example 2?
example 1

dna
t
a
c
g
t
a
c
g

rna
a
u
g
c
a
u
g
c

example 2

dna
t
a
c
t
g
t
a
c

rna
a
u
g
a
c
a
u
g

(1 point)
chromosomal
insertion
substitution
deletion

Explanation:

In Example 1, the DNA sequence is TACGTACG and the RNA sequence is AUGCAUGC. In Example 2, the DNA sequence is TACTGTAC. Comparing the DNA sequences of Example 1 and Example 2, we can see that a base 'G' in the DNA of Example 1 (at position 4) is missing in Example 2. This is a deletion mutation. A deletion mutation is when one or more nucleotide bases are removed from a DNA sequence.

Answer:

Deletion