Chapter 1, Problem 11P

A.

Summary Introduction

To determine: Whether the given phylogenetic tree supports or refutes the hypothesis that plant hemoglobins arose by horizontal gene transfer.

Introduction: Phylogenetic tree is the branching representation of evolutionary path and relationships among different biological organisms. It is made on the basis of similarities and differences in their characteristic features.

B.

Summary Introduction

To determine: How would the phylogenetic tree look like if the plant hemoglobin genes were originally derived from a parasitic nematode.

Introduction: Phylogenetic tree is the branching representation of evolutionary path and relationships among different biological organisms. It is made on the basis of similarities and differences in their characteristic features.