Basic Bioinformatics Terms on letter D 3:44:00 PM Posted by AEI Online Tutor No Comments Basic Bioinformatics Terms on letter D These Basic Bioinformatics Terms on letter D. It can boost vocabulary in bioinformatics. It can also enhance basic knowledge of Bioinformatics. 1. What is "Dendrogram"? View Answer Dendrogram - It is another name for phylogenetic tree. The ClustalW guide tree is often referred to as a dendrogram, it is a file with a .dnd extension. 2. What is "Distance matrix"? View Answer Distance matrix - It is a matrix that contains all the pairwise distances between sequences in a data set. Distance matrices afe often u sed to compute phylogenetic trees. Not a substitution matrix.