Consider the following statements in reference to the Phylogenetic classification system.
1. It shows an evolutionary relationship between various organisms on the basis of descent from a common ancestor.
2. In this system, the cladistics method is used in generating phylogenetic trees.
3. It was proposed by Swedish Botanist Carolus Linnaeus.
Which of the statements given above is/are correct?

Correct option is B

The correct answer is: (b) 1 and 2 only
Solution :
· Statement 1 is correct – The phylogenetic classification system classifies organisms based on evolutionary descent and common ancestry.
· Statement 2 is correct – Cladistics is a modern method used to build phylogenetic trees based on shared derived characteristics.
· Statement 3 is incorrect – Carolus Linnaeus proposed the artificial system of classification based on morphological traits, not phylogenetic.
Information Booster:
· Phylogenetic classification uses DNA sequencing, protein structure, and fossil records.
· The system is dynamic and can change with new evolutionary data.
· Cladistics arranges organisms in clades—groups of organisms that include an ancestor and all its descendants.
· First widely accepted phylogenetic tree was drawn by Ernst Haeckel in the 19th century.
· Molecular phylogenetics plays a key role in modern biological classification.