You are comparing two samples of the octopus genome, one from an octopus that can make ink (sample 1), and one from an Octopus that can’t make ink (sample 2). You notice the one who can’t make ink has a mutation. Sample 1: ATTACAGTACTGGCA Sample 2: ATTACAATACTGGCA Looking at the sequences carefully you determine it is a mutation. A. Inversion B. Insertion C. Deletion D. Substitution

C. Deletion  

Explanation:

Deletions are mutations that involve the loss of genetic information. These mutations ranging from the loss of a single nucleotide to a chromosome fragment.

A substitution is a mutation where one nucleotide is replaced by another base pair.

Insertions are mutations where one or more nucleotides are added to the genetic sequence.

An inversion is a mutation where one or more nucleotides are inverted in the sequence.

In this case, the second sequence contains an Adenine more than the first sequence: ATTACA(A)TACTGGCA, and, therefore, this first sequence has suffered a deletion.

your spelling is a little off : ]