Examine multiple variation parameters for a genomic region , Biology

Assignment Help:
  1. Determine SNP variation among the aligned DNAs for a genomic region.   See below for how to count SNP variation.  The output file (Your_name_snp.txt) should have two columns of numbers.  The first column will indicate total number of SNP sites per species and the second will be the percent of sequences/species having that same number of variant nucleotides.
  2. Determine in-del variation among the aligned DNAs for a genomic region. The output file (Your_name_in_del.txt) should be two columns of numbers.  The first column will indicate total number of in-del sites per species and the second will be the percent of sequences/species having that same number of in-del.
  3. Determine overall variation (SNPs and in-dels) among the aligned DNAs for a genomic region. The output file (Your_name_both.txt) two columns of numbers.  The first column will indicate total number of variant sites (SNP and in-del) per species and the second will be the percent of sequences/species having that same number of variant nucleotides.  This will generate the same data used for the figure on page 3.

Sample Alignment: 48 bases,  differences are highlighted

Seq1      ATGCATGCATGCATGCATGCATGCATGCATGCATGCATGCATGCATGC

Seq2      AAAAATGCATGCATGCATGCATGCATGCATGCATGCATGCATGCATGC

Seq3      AAAAATGCATGCATGCA-GCATGCATGCATGCATGCATGCATGCATGC

Seq4      AAAAATGCATGCATGCA-GCATGCATGCATTTTTGCATGCATGCATGC

Seq5      AAAAATGCATGCATGCA-GCATGCATGCATTTTTGCAT-CATGCATGC

Computation:  Compare Seq1 to 2,3,4, and 5 you find the differences (SNPs and InDels).

Seq1:Seq1 = 0 changes

Seq1:Seq2 = 3 changes

Seq1:Seq3 = 4 changes

Seq1:Seq4 = 7 changes

Seq1:Seq5 = 8 changes

 Repeat using each of the other sequences as the basis for comparison

Seq2:Seq1 = 3 changes                  Seq3:Seq1 = 4 changes

Seq2:Seq2 = 0 changes                  Seq3:Seq2 = 1 changes

Seq2:Seq3 = 1 changes                  Seq3:Seq3 = 0 changes

Seq2:Seq4 = 4 changes                  Seq3:Seq4 = 3 changes

Seq2:Seq5 = 5 changes                  Seq3:Seq5 = 4 changes

 

Seq4:Seq1 = 7 changes                  Seq5:Seq1 = 8 changes

Seq4:Seq2 = 4 changes                  Seq5:Seq2 = 5 changes

Seq4:Seq3 = 3 changes                  Seq5:Seq3 = 4 changes

Seq4:Seq4 = 0 changes                  Seq5:Seq4 = 1 changes

Seq4:Seq5 = 1 changes                  Seq5:Seq5 = 0 changes

 

Our input file is a FASTA format file of all sequences/species that has been previously aligned and trimmed.  There are some odd characters in the file, so we'll have to deal with that.


Related Discussions:- Examine multiple variation parameters for a genomic region

Does mitosis properly occur before or after the interphase, Does mitosis pr...

Does mitosis properly occur before or after the interphase? Is it a mere "point of view" issue? Mitosis must be considered a succeeding phase after interphase since this

What might explain the pattern, A group of Ethiopians were assayed for CCR5...

A group of Ethiopians were assayed for CCR5-del32 deletion polymorphism. 223 were +/+, 64 were +/del32, and 6 were del32/del32. Are the observed data significantly different from H

Explain the term- cerebral ischemia, Explain the term- Cerebral Ischemia ...

Explain the term- Cerebral Ischemia Ischemia refers to any of a group of disorders in which the symptoms are caused by vessel blockage preventing a sufficient supply of blood t

Determine the food sources of vitamin a, Determine the Food Sources of Vita...

Determine the Food Sources of Vitamin A? Vitamin A or retinol performed vitamin A), as you may already know, is found only in foods of animal origin, such as milk, cheese, crea

Venipuncture - blood collection, Venipuncture : patient shoul...

Venipuncture : patient should be seated or supine for at least 20 minutes before sampling. An arm with an inserted intravenous line should be avoided. The median cubi

Query, How can I get assignment order

How can I get assignment order

What are the result of arterial switch operation, What are the result of Ar...

What are the result of Arterial Switch operation ? The operation is highly specialised. When carried out in experienced centers the mortality for simple TGA and TGA with VSD i

Sample titration - estimation of vitamin c in chillies, Define Sample Titra...

Define Sample Titration - estimation of vitamin c in chillies? Take a clean and dry large chilli and weigh it. Note the weight of the chilli. Grind the chilli to a fine paste i

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd