{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Assignment 3

# Assignment 3 - A B C D A 1.2 0.9 1.7 B 1.1 1.9 C 1.6 D...

This preview shows pages 1–3. Sign up to view the full content.

Introduction to Bioinformatics/Elements of Bioinformatics Assignment 3 Due: April 21, 2009 Submit in class or via email to [email protected] 1a Write the following phylogenetic tree in the Newick tree format. (3%) 1b. Find the root of the above tree by the mid-point rooting technique. Write the resulting rooted tree in the Newick tree format. (2%) 2. Consider the following alignment: Seq1. CTAAGGCTTACGATTACGAGGATCCAAATGGCACCAATGCT Seq2. CTA-CGCTTACGACAACGAGGATCCGAATGGCACCATTGCT Calculate the Juke-Cantor distance between the 2 sequences. (2%)

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
3. Consider the following trees: a) Which of them are the same, as rooted additive trees? (1%) b) Which of them are the same, as unrooted additive trees? (1%) c) Which of them are the same, as rooted topological trees? (1%) d) Which of them are the same, as unrooted topological trees? (1%) 4. A distance matrix is constructed from the multiple alignment of 4 sequences: