VIPSolutionsanswer this question and give explanation of each and give final answer in end10 — or #2 st#l : I 61 1 #1 =D-PLI 5 in #2=D-PL2 4. i rt | _-— #3=PLI-PL2 § s. hi #=D-PL3 2 #5 PLI-PLY 3 AEN STE Erie ‘Answer the following questions based on the LOD results shown in the chart above. 2) Which PL marker is most tightly linked to the disease-causing gene? |b) Which combination of markers is closer: PL1 and PL2, or PL3 and PL4? ©) What is the most likely recombination distance between the PL3 and PL4 markers?
Question:
answer this question and give explanation of each and give final answer in end
10 —
or #2
st#l
: I
61 1 #1 =D-PLI
5 in #2=D-PL2
4. i rt | _-— #3=PLI-PL2
§ s. hi #=D-PL3
2 #5 PLI-PLY
3 AEN
STE
Erie
‘Answer the following questions based on the LOD results shown in the chart above.
2) Which PL marker is most tightly linked to the disease-causing gene?
|b) Which combination of markers is closer: PL1 and PL2, or PL3 and PL4?
©) What is the most likely recombination distance between the PL3 and PL4 markers?
This is AI generated Response.
Asked by: Test User 100181
Created at: 2025-05-06 22:49:45
Asked by: Test User 100181
Created at: 2025-05-06 22:49:45
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Let's break down each question based on the LOD (logarithm of the odds) score chart provided:
### **a) Which PL marker is most tightly linked to the disease-causing gene?**
#### **Explanation:**
- The LOD score measures the likelihood that two loci (e.g., a disease gene and a marker) are linked versus unlinked.
- The highest LOD score at the lowest recombination frequency (near 0%) indicates the tightest linkage.
- On the graph, **#2 (D – PL2, blue curve)** reaches the highest LOD score at the lowest recombination percentage.
#### **Answer:**
**PL2 is most tightly linked to the disease-causing gene.**
---
### **b) Which combination of markers is closer: PL1 and PL2, or PL3 and PL4?**
#### **Explanation:**
- The marker pair with the LOD score peak at a lower recombination percentage is closer together.
- Look at **#3 (PL1 – PL2, green curve)** and **#5 (PL3 – PL4, black curve)**.
- **#3 (PL1 – PL2)** peaks at a lower recombination percentage than **#5 (PL3 – PL4)**.
#### **Answer:**
**PL1 and PL2 are closer together than PL3 and PL4.**
---
### **c) What is the most likely recombination distance between the PL3 and PL4 markers?**
#### **Explanation:**
- The most likely recombination distance is where the LOD score curve for that marker pair (#5, black curve) reaches its peak.
- Looking at the graph, the peak for #5 (PL3 – PL4) is around **20% recombination**.
#### **Answer:**
**The most likely recombination distance between PL3 and PL4 is about 20%.**
---
## **Final Answers:**
a) PL2 is most tightly linked to the disease-causing gene.
b) PL1 and PL2 are closer together than PL3 and PL4.
c) The most likely recombination distance between PL3 and PL4 is about 20%.
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