The base sequences below show two different sequences of the same gene. What type of mutation is illustrated? (SC.912.L.16.3)

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deletion
insertion
inversion
substitution

1 answer

To determine the type of mutation illustrated in the base sequences, we need to analyze the differences between the two sequences. Here’s a brief overview of the types of mutations mentioned:

  1. Deletion: A section of the DNA sequence is removed.
  2. Insertion: An extra base or bases are added to the sequence.
  3. Inversion: A section of the DNA sequence is reversed.
  4. Substitution: One base is replaced by another base.

Since I can't see the actual sequences, I can't directly identify the type of mutation. However, you can identify the mutation by comparing the two sequences you have:

  • If you see missing bases in one sequence compared to the other, it's a deletion.
  • If you see extra bases in one sequence, it's an insertion.
  • If there is a segment of the sequence that appears to be reversed, it's an inversion.
  • If one base is swapped for another, it's a substitution.

Look for these signs in the sequences you have, and you'll be able to classify the mutation correctly.