Etiology, Biology

Assignment Help:

Etiology
The infectious agent of psittacosis - lymphogranuloma venerum trachoma group (PLVG) is an obligate intracellular parasite and is classified as separate genera with only 2 species, viz. Chlamydia trachomatis and Chlamydia psittacii. These organisms are the members of an exclusive order Chlamydiales under the family Chlamydiaceae. The organism resembles bacteria in the composition of the cell wall, as it possesses both RNA and DNA and also multiply by binary fission. However, unlike bacteria, this multiplication occurs only within the host cells. In this respect, like viruses the organism is intracellular and can only be propagated or multiply in living cells. The elementary bodies of chlamydia stain with basic dyes and are visible as small, round red coloured dots with the light microscope when stained by the methods of Machiavello or Gimenez or modified acid-fast techniques. Their colour is purple blue in Giemenez stained preparations and appear Gram negative in Gram’s stained preparations.


Related Discussions:- Etiology

What is isotope switching, It is conversion of antibody class to another re...

It is conversion of antibody class to another resulting from genetic rearrangement of heavy chain same region genes in B cells. Isotope switching is also known as class switching.

What is the difference between macro and micronutrients, What is the differ...

What is the difference between macro and micronutrients? The categorization criterion of nutrients into macro and micronutrients has no relation to the size of the molecule. M

Explain genotypical and phenotypical forms, In the F2 generation of hybridi...

In the F2 generation of hybridization for a given trait conditioned by a pair of alleles T and t, according to Mendel's first law what are the genotypes of each phenotypical form?

Define changing body composition - age related functional, Define Changing ...

Define Changing Body Composition and Techniques for Measuring Body Composition? Changing body composition has been suggested as a pathway to explain age-related functional decl

Define proteolytic enzymes, Proteolytic enzymes They catalyze the hydro...

Proteolytic enzymes They catalyze the hydrolysis of peptide bonds in other proteins. In order to prevent them doing generalized damage to all cellular proteins, they are often

How simple transposition of the great arteries present, How Simple Transpos...

How Simple Transposition of the Great Arteries Present after 30 Days ? A switch operation will have poor results, as the ventricle that has regressed will not be able to mainta

What is embryogenesis explain in detail, What is Embryogenesis explain in d...

What is Embryogenesis explain in detail? Embryogenesis in humans consists of the first eight weeks of development of the zygote. Embryogenesis in animals is generally divided i

Difference between cryptogamic and phanerogamic plants, What is the differe...

What is the difference among cryptogamic and phanerogamic plants? Cryptogamic (hidden sex organs) plants are those that do not show flowers or seeds. They comprise the bryophy

Enumerate the stages in trabecular bone surface remodeling, Enumerate the s...

Enumerate the stages in trabecular bone surface remodeling The stages in trabecular bone surface remodeling are: 1. Quiescence - resting state of the bone surface. 2. Act

What is coronary artery disease, Q. What is Coronary artery disease? Nu...

Q. What is Coronary artery disease? Nutrition is a basic prerequisite for maintaining a desirable body weight and that diet has a major role in the prevention and treatment of

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