Explain phenetic classification, Biology

Phenetic Classification

This system is based exclusively upon face value of observed characters without direct reference to phylogeny. The taxa are either classified on the basis of a few characters or overall characteristics. When based on a few characters, the groupings are subjected to change on the discovery of natural affinities of the taxa,

The greatest weakness in phenetic approach is that it demonstrates a false claim in establishing natural groups as products of the human mind rather than of evolution. It is now a well recognised fact for all natural taxa, especially species with their 'reproductive isolation, that they are not an arbitrary, subjective, man-made phenomena. This approach is quite useful for groups with immature classification and to those with numerous non-redundant characters. It is of no use when applied to higher organisms. The use of computer methods of pheneticists can be of great help in taxonomy if combined with philosophy of evolutionary taxonomy together with a the proper weighting of characters.

Posted Date: 6/5/2013 5:25:12 AM | Location : United States

Related Discussions:- Explain phenetic classification, Assignment Help, Ask Question on Explain phenetic classification, Get Answer, Expert's Help, Explain phenetic classification Discussions

Write discussion on Explain phenetic classification
Your posts are moderated
Related Questions
Q. Drug Management for gout disease? Drugs are so effective in lowering the serum mate concentration that rigid restriction of dietary purines is rarely necessary. Uricosurie d

Does an increase of H+ cause the hemaglobin oxygen binding curve to shift to the left or right? Explain.

State four characteristics of an efficient respiratory surface. Four characteristics of an well-organized respiratory surface are: a) thin epithelium, b) large surface ar

Vesicular exanthema Vesicular exanthema of pigs closely resembles foot-and-mouth disease in these animals. The virus causing the disease belongs to the genus Calicivirus in the fa

Organ Systems :  Organisms are composed of organ systems. Each organ system is made up of several different organs. For example, the digestive system is composed of several organ

give a detail account of modes of locomotion in protozoa

Q In which environments bacteria live? Bacteria can be found in a variety of environments throughout the planet. There are bacteria in the air, on the surface, in fresh water,

write about asexual reproduction in mucor

Define Diagnostic Criteria for Bulimia Nervosa? 1. Recurrent episodes of binge eating. An episode of binge eating is characterized by both of the following a) Eating, in a d