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Q. Illustrate Numerical Taxonomy?
Taxonomy today is, in many dctails, different from what it was a generation ago. The use of computers by taxonomists has established an interesting modern trend called Numerical ' t'axonomy or Taximetrics. Mathematical and statistical evaluation of taxonomic information and computation of this data has provided taxonomists with new approaches to understand classification, in this section, you shall learn about the fundamentals of numerical taxonomy; know the principles and important terms used in this science; and understand the procedures adopted by numerical taxonomists in arriving at a classification.
You had studied in Block I, units 1 and 2, that organisms re classified on the basis of evidence obtained from their characters. You have also studied that different kinds of classifications can be designed by ,using a few or many characters. M. Adanson (1763) proposed that a classification should use a vast range of characters covering all aspects of the plants, and in construction of a classification all characters must be given equal importance. This idea forms the basis of modern numerical taxonomy, also called Neo-Adansonian Taxonomy. So far as the character number is concerned there is no limitation but larger the number better is the approach for generalisation of the taxa. You should remember that numerical taxonomy is not a totally new approach, but it is an organised method of evaluating data with computers in an objective and repeatable manner enabling comparison of many characters from many populations of plants.
In a possible future scenario, male fertility drops to zero, but, luckily, scientists develop a way for women to produce babies by virgin birth. Meiocytes are converted directly (w
MULTIPLE ALLELES (i) More than two alternative forms (alleles) of a gene in a population occupying the same locus on a chromosome or its homologue are known as multiple
PHYSICA L PROPERTIES All monosaccharides which have an asymmetric carbon are able to rotate polarized light either to left side ( laevorotatory ) or right side ( dextroro
What is the epidermis..
Phylum Sporozoa 1) Thcy do not liavc any external locomotory dcvice and move by wriggling. 2) Reproduction by producing numerous spores. 3) All are parasites of animals,
Types of Surgery : Tricuspid valvotomy is done as an open procedure at the end of surgery on mitral and/or aortic valve. It can be done on an arrested heart or on a beating heart
HIV-Infected patients Because TB therapy is complicated by co-infection with HIV, testing for HIV infection is recommended for all patients with active tuberculosis. To minimiz
Q. Explain the Use of nitrates and nitrites in microorganisms? The use of nitrates and nitrites has been widely used in the curing of meat. The reduction of nitrates by bacteri
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What is Hormones explain its role in humun body? Hormones are chemical signals that trigger responses in another part of the body. Once secreted, hormones move through the spa
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