Question

Question: Sketch a phylogenetic tree for the family of homologous proteins

whose partial sequences are given below.

Protein A T L A D K A I S L H D S

Protein B T L G D K A V S I H E S

Protein C T L A D K A I S V H D S

Short answer

It’s a phylogenetic tree.

Step-by-step solution

Explanation of Concept

A phylogenetic tree, also known as phylogeny, is a diagram that shows how various species, animals, or genes descended from a common ancestor.

Sequences of Protein

Except for the amino acid at position 9, the amino acid sequences of proteins and are identical. Protein B differs from Protein and in its sequence.

Therefore, it’s a phylogenetic tree.