How does the synthetic theory of evolution explain this fact, Biology

Assignment Help:

In hospitals where many tuberculosis patients are treated the population of the tuberculosis mycobacteria may be constituted of multiresistant (to antibiotics) strains. How does the synthetic theory of evolution explain this fact?

The appearance of the multiresistant strains of pathogenic parasites in hospitals, for instance, of multiresistant tuberculosis bacteria, can be explained by the synthetic theory of evolution.

Since in any environment, TB bacteria in hospitals undergo changes in their genetic material. In the hospital environment though they suffer continuous exposition to antibiotics many of them die by means of the antibiotic action but carriers of mutations that provide resistance to those antibiotics proliferate freely and these resistant microorganisms when submitted to other antibiotics again undergo natural selection and those which became resistant to these other drugs are preserved and proliferate. Therefore strains of multiresistant (nontreatable) mutant bacteria emerge in hospitals.

The use of antibiotics is a factor that promotes natural selection and the emergence of multiresistant bacteria. This is the reason why hospitals often have committees that control the use of antibiotics.

 

 


Related Discussions:- How does the synthetic theory of evolution explain this fact

What is vascular cambium? what are their functions?, What is vascular cambi...

What is vascular cambium? What are their functions? The Vascular cambium is the secondary meristematic tissue that in roots and in the stem forms the vascular tissues phloem an

Normal pigmentation, The female I-1 and her mate, male I-2, had four childr...

The female I-1 and her mate, male I-2, had four children, one of whom has albinism. What is the probability that they could have had a total of four children with any other outcome

Explain in brief about polymers, Explain in brief about Polymers In com...

Explain in brief about Polymers In comparison to metals and ceramics, polymers are weak and flexible. These are not popular as dental implant materials. Examples of polymeric m

Difference between that is alive, Is there a difference between something t...

Is there a difference between something that is alive and something that is a living organism?

What is an illustration of gene control, Q. What is an illustration of gene...

Q. What is an illustration of gene control? An elegant instance of gene control in bacteria is operon system. A cluster of genes which is responsible for synthesizing a particu

Define modelling the evolution of correlated characters, Define Modelling t...

Define Modelling the evolution of correlated characters? Current discoveries in genomics and proteomics have illustrated that the link between genotype and phenotype is much mo

Excretion organ, why excretory organ of prawn is called green gland?

why excretory organ of prawn is called green gland?

Explain the methodology for seliwanoff test, Explain the Methodology for se...

Explain the Methodology for seliwanoff test? Take 5 ml of seliwanoff's reagent in a test tube. Add 5-6 drops of the glucose solution and heat the mixture to boiling for about 3

Bio212, do you think the social and cultural environment of the 18th and 19...

do you think the social and cultural environment of the 18th and 19th centuries helped or hindered the study of microbiology in particular and science in general

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd