Question
Each of these mutations changes the DNA in some way and may may lead to changes in the proteins produced by the organism. What type of mutation occurred at mutation #2 and does it cause a frameshift? a point- yes b insertion - no c translocation - no d insertion - yes
Answers
GPT-4o mini
To determine the type of mutation at mutation #2 and whether it causes a frameshift, we need to understand the definitions of the different types of mutations mentioned:
1. **Point mutation**: A change in a single nucleotide base pair, which can result in a change in one amino acid (missense) or no change (silent).
2. **Insertion**: Involves the addition of one or more nucleotide bases into the DNA sequence. Insertions can lead to a frameshift, altering the reading frame downstream of the mutation.
3. **Translocation**: The movement of a segment of DNA from one location to another, which typically does not cause a frameshift on its own.
To summarize the statements regarding whether it causes a frameshift:
- **Point - yes**: Incorrect. Point mutations do not cause frameshifts.
- **Insertion - no**: Incorrect. Insertions typically cause frameshifts.
- **Translocation - no**: Correct regarding frameshifts, but doesn't define the type of mutation.
- **Insertion - yes**: Correct. Insertions can lead to frameshifts.
Based on the definitions, if mutation #2 is an insertion, it would indeed cause a frameshift. Therefore, if mutation #2 is an insertion, the correct option would be **d insertion - yes**.
1. **Point mutation**: A change in a single nucleotide base pair, which can result in a change in one amino acid (missense) or no change (silent).
2. **Insertion**: Involves the addition of one or more nucleotide bases into the DNA sequence. Insertions can lead to a frameshift, altering the reading frame downstream of the mutation.
3. **Translocation**: The movement of a segment of DNA from one location to another, which typically does not cause a frameshift on its own.
To summarize the statements regarding whether it causes a frameshift:
- **Point - yes**: Incorrect. Point mutations do not cause frameshifts.
- **Insertion - no**: Incorrect. Insertions typically cause frameshifts.
- **Translocation - no**: Correct regarding frameshifts, but doesn't define the type of mutation.
- **Insertion - yes**: Correct. Insertions can lead to frameshifts.
Based on the definitions, if mutation #2 is an insertion, it would indeed cause a frameshift. Therefore, if mutation #2 is an insertion, the correct option would be **d insertion - yes**.