The pedigree is form a family in which a completely penetrant, autosomal dominant disease is transmitted through three generations, together with microarray analysis of each individual for a biallelic SNP locus (the alleles of the SNP are C and T). a. Do the data suggest the existence of a genetic linkage between the SNP locus and the disease locus? Explain your reasoning. b. If there is linkage, what is the estimated genetic distance between the two loci?
Added by Emily B.
Step 1
We should look for concordance or discordance between the presence of the disease and the specific SNP alleles. If the disease and a particular SNP allele are consistently inherited together, this suggests linkage. Show more…
Show all steps
Your feedback will help us improve your experience
Rashmi Sinha and 90 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The figure that follows shows the pedigree of a family in which a completely penetrant, autosomal dominant disease is transmitted through three generations, together with microarray analysis of each individual for a biallelic SNP locus (the alleles are $C$ and $T$ ). a. Do the data suggest the existence of genetic linkage between the SNP locus and the disease locus? If so, what is the estimated genetic distance between the two loci? b. Calculate the maximum Lod score for linkage between the SNP and the disease locus for this pedigree. What does this value of the Lod score signify?
Supreeta N.
The figure below shows the pedigree of a family in which a completely penetrant, autosomal dominant disease is transmitted through three generations, together with microarray analysis of each individual for a biallelic SNP locus (the alleles are C and T) Calculate the maximum Lod score for linkage between the SNP and the disease locus in this pedigree. Show your work:
Jakob W.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD