Question

What is a phylogenetic relationship?

Answer 1

Phylogenetic relationship:

1. A phylogenetic relationship is a study of the relationship among organisms of a species or a population through evolution.
2. These relationships are identified using the similarities in DNA, RNA, or protein sequences, or a comparison of the anatomical features.

Purpose of phylogenetic relationships:

1. It helps to find the relation between ancestor and descendent sequence.
2. It helps to identify the time of divergence between organisms that share a common ancestor.

Assumptions made in identifying phylogenetic relationships:

1. All life arises from a common ancestor.
2. The relationship is determined by the traits shared between the organisms either genetically or anatomically.
3. New organisms evolve when existing populations divide into groups and with time the characteristics change in the lineage.