Question

According to phylogenetic classification systems, organisms belonging to:

A. Different taxa have common ancestry
B. Same taxa have different ancestry
C. Same taxa have a common ancestry
D. Different taxa have different ancestry

Answer 1

Hint: In a phylogenetic classification system, organisms are classified on the basis of descent from a common ancestor. This system shows the genetic relationship between organisms.

Complete step-by-step answer:

1. In 1959, Darwin said that the classification of organisms should be related to their genetic characteristics.

2. The classification based on the evolutionary and common ancestry of organisms is called a phylogenetic classification. In short, it is based on the evolution of life. The phylogenetics is commonly known as speciation.

3. The system is commonly known as cladistic nomenclature. It is a process of nomenclature for taxa that uses phylogenetic definitions for naming.

4. The relationship between organisms can be understood by phylogenetic interpretation. In this, the evolution of heritable traits, like DNA sequences and morphology are studied. It deals with the genetic relationship among the organisms.

5. The phylogenetic analysis of organisms can be done in modern (molecular) and classical features(morphological).

6. In this system, first, all the organisms belonging to the ancestral stock are taken into consideration. Then a relation between them is established. After that, it is checked whether they are related from an evolutionary point of view or not.

7. The main advantage of studying the organism from an evolutionary point of view is one will know some very important features that were developed first in that organism as well as their evolution history too.

So, the correct answer is option C.

Note: The phylogenetic classification does not include ranking among the organisms. It is helpful in understanding the underlying causes of the differences in the genetic diversity of the organism.