Question

Give any two reasons why phylogenetic classification is not always possible?

Answer 1

Phylogenetic classification is based on the evolutionary relationships amongst species. This is achieved by performing DNA analysis between the organism concerned and its probable ancestors.

However, it may happen that many a times DNA samples of the ancestors may not be available due to extinction and absence of fossil records.

The phylogenetic classification does not follow or have a nomenclature system.

It is easier to identify and differentiate organisms based on their morphological characteristics than genetic.