Question
A DNA segment has base order AGC TTA TCG. Which copy exhibits a frameshift mutation through deletion?(1 point)
Responses
AGC TTT CG
AGC TTT CG
AGC TCG
AGC TCG
AGC TTA TAG
AGC TTA TAG
TTA TCG
A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution mutation?(1 point)
Responses
CCA ATA GCT
CCA ATA GCT
CCA TAG CT
CCA TAG CT
CCC TAG CT
CCC TAG CT
CCA TAA CT
Which type of mutation causes cystic fibrosis?(1 point)
Responses
substitution
substitution
deletion
deletion
insertion
insertion
silent
Which statement about chromosomes is true?(1 point)
Responses
The same number of chromosomes appears in haploid and body cells.
The same number of chromosomes appears in haploid and body cells.
Chromosomes contain DNA.
Chromosomes contain DNA.
Chromosomes are found in sets of three.
Chromosomes are found in sets of three.
DNA contains chromosomes.
Which modification affects an organism’s expressed characteristics while leaving its DNA sequence unchanged?(1 point)
Responses
insertion mutation
insertion mutation
epigenetic change
epigenetic change
deletion mutation
deletion mutation
substitution mutation
Responses
AGC TTT CG
AGC TTT CG
AGC TCG
AGC TCG
AGC TTA TAG
AGC TTA TAG
TTA TCG
A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution mutation?(1 point)
Responses
CCA ATA GCT
CCA ATA GCT
CCA TAG CT
CCA TAG CT
CCC TAG CT
CCC TAG CT
CCA TAA CT
Which type of mutation causes cystic fibrosis?(1 point)
Responses
substitution
substitution
deletion
deletion
insertion
insertion
silent
Which statement about chromosomes is true?(1 point)
Responses
The same number of chromosomes appears in haploid and body cells.
The same number of chromosomes appears in haploid and body cells.
Chromosomes contain DNA.
Chromosomes contain DNA.
Chromosomes are found in sets of three.
Chromosomes are found in sets of three.
DNA contains chromosomes.
Which modification affects an organism’s expressed characteristics while leaving its DNA sequence unchanged?(1 point)
Responses
insertion mutation
insertion mutation
epigenetic change
epigenetic change
deletion mutation
deletion mutation
substitution mutation
Answers
GPT-4o mini
Here are the correct answers for your questions based on the context provided:
1. **Which copy exhibits a frameshift mutation through deletion?**
- **Answer:** AGC TTT CG
(This is a deletion of one base, which alters the subsequent reading frame.)
2. **Which copy exhibits a deletion in the first codon triplet and then a substitution mutation?**
- **Answer:** CCA ATA GCT
(This shows a deletion of the first codon and a replacement of the first base with another base.)
3. **Which type of mutation causes cystic fibrosis?**
- **Answer:** deletion
(Cystic fibrosis is commonly caused by a deletion of a single amino acid in the CFTR gene.)
4. **Which statement about chromosomes is true?**
- **Answer:** Chromosomes contain DNA.
(This statement is true, while the others contain inaccuracies.)
5. **Which modification affects an organism’s expressed characteristics while leaving its DNA sequence unchanged?**
- **Answer:** epigenetic change
(Epigenetic changes can affect gene expression without altering the underlying DNA sequence.)
Feel free to ask more questions if needed!
1. **Which copy exhibits a frameshift mutation through deletion?**
- **Answer:** AGC TTT CG
(This is a deletion of one base, which alters the subsequent reading frame.)
2. **Which copy exhibits a deletion in the first codon triplet and then a substitution mutation?**
- **Answer:** CCA ATA GCT
(This shows a deletion of the first codon and a replacement of the first base with another base.)
3. **Which type of mutation causes cystic fibrosis?**
- **Answer:** deletion
(Cystic fibrosis is commonly caused by a deletion of a single amino acid in the CFTR gene.)
4. **Which statement about chromosomes is true?**
- **Answer:** Chromosomes contain DNA.
(This statement is true, while the others contain inaccuracies.)
5. **Which modification affects an organism’s expressed characteristics while leaving its DNA sequence unchanged?**
- **Answer:** epigenetic change
(Epigenetic changes can affect gene expression without altering the underlying DNA sequence.)
Feel free to ask more questions if needed!