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

Economic dimensions of financing healthcare, Economic Dimensions of Financi...

Economic Dimensions of Financing Healthcare Establishment of adequate healthcare services, accessible/affordable to all sections of the society, is an important function of th

How light reaction effects cell metabolism, How light reaction effects Cell...

How light reaction effects Cell Metabolism ? Light reactions :  The light reactions are carried out by two separate assemblies of several hundred chlorophyll molecules, acces

Endothecium - anther wall layers, Endothecium - Anther Wall Layers The...

Endothecium - Anther Wall Layers The layer of cells lying immediately next to the epidermis is the endothecium, which is responsible for the dehiscence of the anther. It is us

Jaber, What is genetic drift?

What is genetic drift?

Describe about the implant surgeon, Describe about The implant surgeon ...

Describe about The implant surgeon The implant surgeon should have basic knowledge of the macroscopic and microscopic anatomy of the jaw bones with their associated neurovascul

Explain neurosurgery, Neurosurgery An antistaphylococcal antibiotic can...

Neurosurgery An antistaphylococcal antibiotic can decrease the incidence of infection after craniotomy. In spinal surgery, the infection rate after conventional lumbar discecto

Which is plant tissues specialized in covering, Which is plant tissues spec...

Which is plant tissues specialized in covering? The dermal tissues or covering tissues of the plants are the epidermis (that covers the leaves and the young stems and shoots) a

Why does thermal inversion increases air pollution, Why does thermal invers...

Why does thermal inversion increases air pollution? What harm can thermal inversion cause to humans? Thermal inversion confines at low altitude a layer of pollutants that would

Sedative hypnotics - psychological drug dependence, SED A TIV E HYPNOTIC...

SED A TIV E HYPNOTICS - They depress the activity of CNS. Reduce excitement, give feeling of calm. Higher doses induces sleep. Sleep inducing drugs are also called

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