Question

the table contains the dna sequence for a segment of the human insulin gene and the same dna sequence wi
original sequence \tatg cgc ctc ctg ccc ctg ctg gcg
mutated sequence \tatg cgc ctc ctg cac cct gct ggc
which type of mutation occurred in the mutated dna sequence, as compared to the original dna sequen
○ inversion
○ substitution
○ insertion
○ deletion

Explanation:

Compare the original and mutated sequences. In the original, we have "CCC CTG CTG" and in the mutated, it's "CAC CCT GCT". A single - base substitution has occurred. For example, in the "CCC" part of the original, one of the bases has been changed (substituted) to form "CAC" in the mutated sequence. Each codon change (like CCC to CAC) is due to a substitution of a single nucleotide within the codon.

Answer:

substitution