Answer
Verified
444.3k+ views
Hint: Escherichia coli is called in short as E.coli, are bacteria commonly found in the intestines of animals and get released to the environment, food, and water bodies. It consists of a circular plasmid in DNA
Complete step by step answer:
The DNA of E.coli is double- stranded(dsDNA) and circular. The normal structure of DNA is in double- stranded form. In favourable conditions, E.coli only needs 20 minutes to double its number by replication, which makes is it the most broadly studied prokaryotic organism and applied in different fields of biotechnology and recombinant technology, where it is used as the host organism for most of the work with recombinant DNA.
So, the correct answer is ‘dsDNA and circular’.
Additional information:
- E Coli is a facultative anaerobic bacteria of the genus Escherichia and has a rod- shaped structure. They are also coliform, gram- negative bacteria which is abundantly found in the gut of warm- blooded organisms.
- A majority of the strains of E.coli are non- virulent and do not harm humans, but some distinct variants of strains such as EPEC are known to cause gastrointestinal diseases and food spoilage.
- Most of the harmless strains form a symbiotic relationship with humans and constitute the normal microbiota of the intestine and helps humans to form vitamin k2 which helps in the clotting of blood and inhibit the growth of other harmful bacteria in the intestine.
Note:
- Diseases like cholecystitis, traveller’s diarrhoea, neonatal meningitis, pneumonia, and bacteremia are caused by harmful E.coli strains. These strains get released into the environment through faecal matter and spread to a healthy person through contaminated water.
- E Coli bacteria are known for their ability to transfer DNA by conjugation and transduction, which made them one of the most used organisms in the field of recombinant technology and genetic manipulation.
- E.coli is a gram- negative bacteria and can be identified using gram staining which involves a primary stain which is crystal violet, iodide, ethanol as a decolourizer, and a counterstain - Safranin.
Complete step by step answer:
The DNA of E.coli is double- stranded(dsDNA) and circular. The normal structure of DNA is in double- stranded form. In favourable conditions, E.coli only needs 20 minutes to double its number by replication, which makes is it the most broadly studied prokaryotic organism and applied in different fields of biotechnology and recombinant technology, where it is used as the host organism for most of the work with recombinant DNA.
So, the correct answer is ‘dsDNA and circular’.
Additional information:
- E Coli is a facultative anaerobic bacteria of the genus Escherichia and has a rod- shaped structure. They are also coliform, gram- negative bacteria which is abundantly found in the gut of warm- blooded organisms.
- A majority of the strains of E.coli are non- virulent and do not harm humans, but some distinct variants of strains such as EPEC are known to cause gastrointestinal diseases and food spoilage.
- Most of the harmless strains form a symbiotic relationship with humans and constitute the normal microbiota of the intestine and helps humans to form vitamin k2 which helps in the clotting of blood and inhibit the growth of other harmful bacteria in the intestine.
Note:
- Diseases like cholecystitis, traveller’s diarrhoea, neonatal meningitis, pneumonia, and bacteremia are caused by harmful E.coli strains. These strains get released into the environment through faecal matter and spread to a healthy person through contaminated water.
- E Coli bacteria are known for their ability to transfer DNA by conjugation and transduction, which made them one of the most used organisms in the field of recombinant technology and genetic manipulation.
- E.coli is a gram- negative bacteria and can be identified using gram staining which involves a primary stain which is crystal violet, iodide, ethanol as a decolourizer, and a counterstain - Safranin.
Recently Updated Pages
Who among the following was the religious guru of class 7 social science CBSE
what is the correct chronological order of the following class 10 social science CBSE
Which of the following was not the actual cause for class 10 social science CBSE
Which of the following statements is not correct A class 10 social science CBSE
Which of the following leaders was not present in the class 10 social science CBSE
Garampani Sanctuary is located at A Diphu Assam B Gangtok class 10 social science CBSE
Trending doubts
Derive an expression for drift velocity of free electrons class 12 physics CBSE
Which are the Top 10 Largest Countries of the World?
Write down 5 differences between Ntype and Ptype s class 11 physics CBSE
The energy of a charged conductor is given by the expression class 12 physics CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Derive an expression for electric field intensity due class 12 physics CBSE
How do you graph the function fx 4x class 9 maths CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
Derive an expression for electric potential at point class 12 physics CBSE