Question

match the type of mutation to the correct description. one nucleotide base is replaced by another this is a genetic mutation caused by the addition of a single base nucleotide this is a genetic mutation caused by the insertion or deletion of one or more nucleotides that changes the amino acid sequence from the site of the mutation forward. a genetic mutation caused by the loss of a chromosomal segment. base - pair substitution deletion frameshift insertion

Explanation:

1. A base - pair substitution occurs when one nucleotide base is replaced by another.
2. Insertion is a genetic mutation caused by the addition of a single base nucleotide.
3. Frameshift mutations are caused by the insertion or deletion of one or more nucleotides that change the amino - acid sequence from the site of the mutation forward.
4. Deletion is a genetic mutation caused by the loss of a chromosomal segment.

Answer:

1. One nucleotide base is replaced by another - Base - pair substitution
2. This is a genetic mutation caused by the addition of a single base nucleotide - Insertion
3. This is a genetic mutation caused by the insertion or deletion of one or more nucleotides that changes the amino acid sequence from the site of the mutation forward - Frameshift
4. A genetic mutation caused by the loss of a chromosomal segment - Deletion