Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. What do you mean by Binomial system in binomial nomenclature?
In the previous sections we have outlined the concepts of binomial nomenclature at International level and the current principles. that we adopt today for naming the organisms. You should know that these have been evolved through a long historic process of refinement.
After having gone through the previous sections of this unit you must have understood that biological classification is centred on the primary groups of individual organisms, i.e. the species. Before the 17th century, learned biologists had no method of designating any species they wished to discuss except by writing descriptions. Thus we find "Mocking bird" was designated at that time in Latin phrase as "Turdus minor Cinero-albus non maculatus" (means, Thrush small grayish-white without spot, Similarly, a species of mint designated with the Latin phrase: "Prunella muguna flore albo" (i.e. pumella with the large white flower). These were polynomial names composed of several words in a series. These were cumbersome and often difficult to interpret. The first steps in developing modem nomenclature were those leading to binomial system of nomenclature. Binomial is a Latin term used to denote a combination of two words constituting a name also called binomen, binomial or binary. The system of naming species by means of a generic name plus a specific epithet (often termed trivial name)- is known as binomial system of nomenc1,ature. For example we can recollect the scientific name of sparrow i.e., Passer domestics Linn. In this binomial the first word (Passer) designates the genus to which the bird belongs and the second word (domestics) to a particular species of that genus. The two words in combination only constitute the species name of sparrow.
There is an obvious demerit in tagging specific epithet with the genus to form species name. With the transfer of a species to a different genus on taxonomists decision, its name is inevitably changed which in turn disturbs the free flow of information. To overcome the confusion so produced the code lays certain provisions which should be strictly observed. We can summarise the merits of binomial system as follows:,
1) It provides a summary of affinities for us which acts as an aid to the memory and provides basic information about organisms unknown to us;
2) If facilitates talking about groups of species that have certain features in common
Person Z swallowed a large amount of substance X and, as a result, has convulsions (abnormal violent contractions of skeletal muscles). Swallowing which of the following substance
Characteristic of Callus The most important characteristic of callus from a functional view point is that abnormal growth has the potential to develop normal roots, shoots and
Explain the Reproductive System? The human reproductive system produces not only reproductive organs and gametes, but also sex hormones, which have far-reaching effects on huma
In lab rats, hair color and texture are controlled by two genes, the A gene for color and the B gene for texture. in both of these genes, the alleles show no dominance to each othe
Q. What is an etiological agent of disease? The etiological agent of disease is the agent that causes the disease. It may perhaps a living being, substance or environmental fac
Height of Plants - Quantitative Characters The height of a plant is a very good indicator of their general performance and therefore, can be employed as a criterion of the suc
How different are the endosperm of gymnosperms and the endosperm of angiosperms? In gymnosperms the endosperm is haploid (n), it is known as primary endosperm. In angiosperm th
Q. Are organic solvents like benzene and ether non-polar or polar substances? the ethers and Benzene are molecules without electrically charged portions and thus they are non-p
Major Criteria 1) Positive blood culture • Typical microorganism for infective endocarditis from two separate blood cultures Viridans streptococci, Streptococcus bovis, HAC
Explain about the Carbohydrate Malabsorption? Carbohydrates malabsorption is usually caused by an inherited or acquired (in intestinal infection, celiac disease, PEM) defect in
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd