Gene Mutations worksheet with questions and DNA sequences for educational use.

Problem Analysis:

The task involves analyzing DNA sequences to identify the type of gene mutation present and determining its effect on the resulting protein. The mutations are categorized into two types:
1. Point Mutation: A single nucleotide change in the DNA sequence.
2. Frameshift Mutation: An insertion or deletion of one or more nucleotides that disrupts the reading frame of the genetic code.

Additionally, we need to determine whether the mutation affects a codon (a group of three nucleotides that codes for an amino acid) or a frameshift (a shift in the reading frame).

Solution:

#### Step 1: Understand the Basics
- Codons: Each codon consists of three nucleotides and codes for a specific amino acid.
- Reading Frame: The sequence of nucleotides is read in groups of three. A frameshift mutation occurs when the reading frame is disrupted by adding or removing nucleotides that are not multiples of three.

#### Step 2: Analyze Each Question

---

##### Question 1:
Original DNA Sequence:
`AAA TCC GGC`

Mutated DNA Sequence:
`AAA TCA GCC`

Analysis:
- Compare the original and mutated sequences:
- Original: `AAA TCC GGC`
- Mutated: `AAA TCA GCC`
- The mutation occurs at the second codon (`TCC` → `TCA`).
- This is a point mutation because only one nucleotide has changed (`C` → `A`).
- The mutation affects a codon because it changes the sequence of one codon without altering the reading frame.

Answer:
- Type of mutation: Point Mutation
- Is it a point mutation or frameshift mutation? Point Mutation
- Does the mutation affect a codon or a frameshift? Codon

---

##### Question 2:
Original DNA Sequence:
`AAA TCC GGC`

Mutated DNA Sequence:
`AAA TCA CCG`

Analysis:
- Compare the original and mutated sequences:
- Original: `AAA TCC GGC`
- Mutated: `AAA TCA CCG`
- The mutation occurs at the third codon (`GGC` → `CCG`).
- This is a point mutation because only one nucleotide has changed (`G` → `C`).
- The mutation affects a codon because it changes the sequence of one codon without altering the reading frame.

Answer:
- Type of mutation: Point Mutation
- Is it a point mutation or frameshift mutation? Point Mutation
- Does the mutation affect a codon or a frameshift? Codon

---

##### Question 3:
Original DNA Sequence:
`AAA TCC GGC`

Mutated DNA Sequence:
`AAA TCA CCC`

Analysis:
- Compare the original and mutated sequences:
- Original: `AAA TCC GGC`
- Mutated: `AAA TCA CCC`
- The mutation occurs at the third codon (`GGC` → `CCC`).
- This is a point mutation because only one nucleotide has changed (`G` → `C`).
- The mutation affects a codon because it changes the sequence of one codon without altering the reading frame.

Answer:
- Type of mutation: Point Mutation
- Is it a point mutation or frameshift mutation? Point Mutation
- Does the mutation affect a codon or a frameshift? Codon

---

##### Question 4:
Original DNA Sequence:
`AAA TTC GGC`

Mutated DNA Sequence:
`AAA TTC CGG`

Analysis:
- Compare the original and mutated sequences:
- Original: `AAA TTC GGC`
- Mutated: `AAA TTC CGG`
- The mutation occurs at the third codon (`GGC` → `CGG`).
- This is a point mutation because only one nucleotide has changed (`G` → `C`).
- The mutation affects a codon because it changes the sequence of one codon without altering the reading frame.

Answer:
- Type of mutation: Point Mutation
- Is it a point mutation or frameshift mutation? Point Mutation
- Does the mutation affect a codon or a frameshift? Codon

---

##### Question 5:
Original DNA Sequence:
`AAA TCC GGC`

Mutated DNA Sequence:
`AAA TCC GGC T`

Analysis:
- Compare the original and mutated sequences:
- Original: `AAA TCC GGC`
- Mutated: `AAA TCC GGC T`
- The mutation adds one nucleotide (`T`) at the end.
- This is a frameshift mutation because the addition of a single nucleotide disrupts the reading frame.
- The mutation affects a frameshift because it alters the entire sequence downstream of the insertion.

Answer:
- Type of mutation: Frameshift Mutation
- Is it a point mutation or frameshift mutation? Frameshift Mutation
- Does the mutation affect a codon or a frameshift? Frameshift

---

##### Question 6:
Original DNA Sequence:
`TTT GGC TCC`

Mutated DNA Sequence:
`TTT GGC T`

Analysis:
- Compare the original and mutated sequences:
- Original: `TTT GGC TCC`
- Mutated: `TTT GGC T`
- The mutation removes one nucleotide (`C`) at the end.
- This is a frameshift mutation because the removal of a single nucleotide disrupts the reading frame.
- The mutation affects a frameshift because it alters the entire sequence downstream of the deletion.

Answer:
- Type of mutation: Frameshift Mutation
- Is it a point mutation or frameshift mutation? Frameshift Mutation
- Does the mutation affect a codon or a frameshift? Frameshift

---

Final Answers:

1. Type of mutation: Point Mutation
Is it a point mutation or frameshift mutation? Point Mutation
Does the mutation affect a codon or a frameshift? Codon

2. Type of mutation: Point Mutation
Is it a point mutation or frameshift mutation? Point Mutation
Does the mutation affect a codon or a frameshift? Codon

3. Type of mutation: Point Mutation
Is it a point mutation or frameshift mutation? Point Mutation
Does the mutation affect a codon or a frameshift? Codon

4. Type of mutation: Point Mutation
Is it a point mutation or frameshift mutation? Point Mutation
Does the mutation affect a codon or a frameshift? Codon

5. Type of mutation: Frameshift Mutation
Is it a point mutation or frameshift mutation? Frameshift Mutation
Does the mutation affect a codon or a frameshift? Frameshift

6. Type of mutation: Frameshift Mutation
Is it a point mutation or frameshift mutation? Frameshift Mutation
Does the mutation affect a codon or a frameshift? Frameshift

---

Final Boxed Answers:

\[
\boxed{
\begin{array}{c}
\text{1. Point Mutation, Point Mutation, Codon} \\
\text{2. Point Mutation, Point Mutation, Codon} \\
\text{3. Point Mutation, Point Mutation, Codon} \\
\text{4. Point Mutation, Point Mutation, Codon} \\
\text{5. Frameshift Mutation, Frameshift Mutation, Frameshift} \\
\text{6. Frameshift Mutation, Frameshift Mutation, Frameshift} \\
\end{array}
}
\]