In which of the following will you look for E. Coli? (a) Milk (b) Water (c) Human intestine (d) Soil

In which of the following will you look for E. Coli? (a) Milk (b) Water (c) Human intestine (d) Soil
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Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature and correctly described? (a) Musca domestica - the common house lizard, a reptile (b) Plasmodium falciparum - a protozoan pathogen causing the most serious type of malaria. (c) Felis tigris - the Indian tiger, well protected in Gir forests. (d) E.coli - full name Entamoeba coli, a commonly occurring bacterium in human intestine.

Description : Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature and correctly described? (a) Musca domestica - the common ... ) E.coli - full name Entamoeba coli, a commonly occurring bacterium in human intestine.

Last Answer : (b) Plasmodium falciparum - a protozoan pathogen causing the most serious type of malaria

The saliva pH is approximately 6.8. It is thus a slightly acid pH. Saliva lubricates the food bolus and initiates the enzymatic extracellular digestion of food. It also works as a buffer for the mouth pH and it has an important role of having IgA antibodies (also present in tears, colostrum, mother’s milk and in the mucosae of the intestine and airways) that protect the organism against pathogens.

Description : The saliva pH is approximately 6.8. It is thus a slightly acid pH. Saliva lubricates the food bolus and initiates the enzymatic extracellular digestion of food. It also works as a buffer for the ... 's milk and in the mucosae of the intestine and airways) that protect the organism against pathogens.

Last Answer : What is the salivary digestive enzyme? Which type of food does it digest and into which smaller molecules does it transform the food?

Lac operon is a cluster of genes present in (A) Human beings (B) E. coli (C) Lambda phage (D) All of these

Description : Lac operon is a cluster of genes present in (A) Human beings (B) E. coli (C) Lambda phage (D) All of these

Last Answer : Answer : B

Non-pathogenic species of genus Entamoeba occurs commonly in the human mouth is B A. E. coli B. E. gingivalis C. E. hartmanni D. None

Description : Non-pathogenic species of genus Entamoeba occurs commonly in the human mouth is B A. E. coli B. E. gingivalis C. E. hartmanni D. None

Last Answer : E. gingivalis

The bacteria which is predominant flora of the human gut is A- Escherichia coli B- Clostridium perfringens C- Bacteroides D- Actinomyces

Description : The bacteria which is predominant flora of the human gut is A- Escherichia coli B- Clostridium perfringens C- Bacteroides D- Actinomyces

Last Answer : Clostridium perfringens

Where should doctors look to see if the large intestine is working properly?

Description : Where should doctors look to see if the large intestine is working properly?

Last Answer : They should check the solid waste from the person

Where should doctors look to see if the large intestine is working properly?

Description : Where should doctors look to see if the large intestine is working properly?

Last Answer : They should check the solid waste from the person

the presence of E. coli in water indicates

Description : the presence of E. coli in water indicates

Last Answer : the presence of E. coli in water indicates A. Water is clear B. Water is fully polluted C. Inorganic pollution D. Fecal pollution

A man has an Escherichia coli bacteremia with a low-grade fever (101.6°F). Appropriate management of his fever would be (a) Give acetaminophen 650 mg orally every 4 hours (b) Give aspirin 650 mg orally every 4 hours (c) Give alternating doses of aspirin and acetaminophen every 4 hours (d) Withhold antipyretics, and use the fever curve to monitor his response to antibiotic therapy (e) Use tepid water baths to reduce the fever

Description : A man has an Escherichia coli bacteremia with a low-grade fever (101.6°F). Appropriate management of his fever would be (a) Give acetaminophen 650 mg orally every 4 hours (b) Give aspirin 650 ... fever curve to monitor his response to antibiotic therapy (e) Use tepid water baths to reduce the fever

Last Answer : Ans: D

How long can E.coli last in test tubes of Terrific Broth in a 37 Celsius incubator?

Description : How long can E.coli last in test tubes of Terrific Broth in a 37 Celsius incubator?

Last Answer : I remember E. Coli living for hours not days in a lab class. What does your lab instruction sheet say?

Raw/Vegan Foodies: What changes have you made with threats of radiation/GMOs/E. Coli in regards to your diet?

Description : Raw/Vegan Foodies: What changes have you made with threats of radiation/GMOs/E. Coli in regards to your diet?

Last Answer : I am not a vegan but this same issue is one reason I have a huge garden this summer! Even organic farming labels do not guarantee chemical, bug or disease free.

Will someone help this e.coli victim with this algebra problem?

Description : Will someone help this e.coli victim with this algebra problem?

Last Answer : answer:Yeah – that seems wrong. I get -3.2x -51.3. Although I don’t know if I’m reading that clearly. There may be some confusion about which is a minus, which is a negative, which is the variable, and which is the multiplication sign.

We can now test our drinks for the presence of the date rape drug. When might we be able to test our food for E. coli, etc.? See deatil?

Description : We can now test our drinks for the presence of the date rape drug. When might we be able to test our food for E. coli, etc.? See deatil?

Last Answer : …what are your thoughts is more like it.

How do i get rid of e coli in my kidney?

Description : How do i get rid of e coli in my kidney?

Last Answer : You need to find another doctor. There's nothing that any of us on the Internet can do for you, only medicine and advice given by a legal physician can help to heal you. You should be highly skeptical of ... d rather not go back, it really is the best option here. In my mind it is the only option.

Can you expose yourself to your own E. coli bacteria?

Description : Can you expose yourself to your own E. coli bacteria?

Last Answer : Yes, you can. People frequently cycle through self-infection through all sorts of fluid/substance/surface contact.

Origin of replication E.coli -Biology

Description : Origin of replication E.coli -Biology

Last Answer : answer:

Which is correct regarding genetically engineered insulin using E.coli ?

Description : Which is correct regarding genetically engineered insulin using E.coli ?

Last Answer : Which is correct regarding genetically engineered insulin using E.coli ? A. Difficulty in ... D. Insulin obtained varies in chemical structure

What is the organelles are missing in E. coli?

Description : What is the organelles are missing in E. coli?

Last Answer : no u

What happens when e. coli is grown on glucose?

Description : What happens when e. coli is grown on glucose?

Last Answer : Feel Free to Answer

Is E.Coli a prokaryote?

Description : Is E.Coli a prokaryote?

Last Answer : Yes, E.coli is a bacteria and it is considered to be aprokaryote.

Is the e coli outbreak involving romain lettuce over?

Description : Is the e coli outbreak involving romain lettuce over?

Last Answer : What is the answer ?

E. coli enteritis?

Description : E. coli enteritis?

Last Answer : DefinitionE. coli enteritis is inflammation of the small intestine from Escherichia coli (E. coli) bacteria. It is the most common cause of travelers' diarrhea.Alternative NamesTraveler's diarrhea ... bacteria from the intestines of an animal while it is being processedWater used during growin

What are the symptoms of e coli poisoning?

Description : What are the symptoms of e coli poisoning?

Last Answer : The kind of symptoms that e coli poisoning brings is stomach pain, diarrhea, vomiting, and intense discomfort. E coli is contracted from certain bacterias & is from food poisoning.

What foods spread e coli?

Description : What foods spread e coli?

Last Answer : Unpasteurized dairy products, such as milks or cheeses can spread e coli. Also, raw meats or meats that have come in contact with feces, which is a main contributor to e coli.

In E. coli the chain initiating amino acid in protein synthesis is (A) N-formyl methionine(B) Methionine (C) Serine (D) Cysteine

Description : In E. coli the chain initiating amino acid in protein synthesis is (A) N-formyl methionine(B) Methionine (C) Serine (D) Cysteine

Last Answer : Answer : A

DNA ligase of E. coli requires which of the following co-factors? (A) FAD (B) NAD+ (C) NADP+ (D) NADH

Description : DNA ligase of E. coli requires which of the following co-factors? (A) FAD (B) NAD+ (C) NADP+ (D) NADH

Last Answer : Answer : B

Which of the following genes of the E.coli “Lac operon” codes for a constitutive protein? (A) The ‘a’ gene (B) The ‘i’ gene (C) The ‘c’ gene (D) The ‘z’ gene

Description : Which of the following genes of the E.coli “Lac operon” codes for a constitutive protein? (A) The ‘a’ gene (B) The ‘i’ gene (C) The ‘c’ gene (D) The ‘z’ gene

Last Answer : Answer : B

Lac operon of E. coli contains _______ is continuity. (A) Regulator and operator genes only (B) Operator and structural genes only (C) Regular and structural genes only (D) Regulator, operator and structural genes

Description : Lac operon of E. coli contains _______ is continuity. (A) Regulator and operator genes only (B) Operator and structural genes only (C) Regular and structural genes only (D) Regulator, operator and structural genes

Last Answer : Answer : D

DNA po lymerase of T. aquat icus is preferred to that of E. coli in PCR because (A) It replicates DNA more efficiently (B) It doesn’t require primers (C) It is not denatured at the melting temperature of DNA (D) It doesn’t cause errors in replication

Description : DNA po lymerase of T. aquat icus is preferred to that of E. coli in PCR because (A) It replicates DNA more efficiently (B) It doesn’t require primers (C) It is not denatured at the melting temperature of DNA (D) It doesn’t cause errors in replication

Last Answer : Answer : C

The DNA polymerase commonly used in polymerase chain reaction is obtained from (A) E. coli (B) Yeast (C) T.aquaticus (D) Eukaryotes

Description : The DNA polymerase commonly used in polymerase chain reaction is obtained from (A) E. coli (B) Yeast (C) T.aquaticus (D) Eukaryotes

Last Answer : Answer : C

All of the following may be used as expression vectors except (A) Plasmid (B) Bacteriophage (C) Baculovirus (D) E. coli

Description : All of the following may be used as expression vectors except (A) Plasmid (B) Bacteriophage (C) Baculovirus (D) E. coli

Last Answer : Answer : D

DNA topoisomerase I of E. coli catalyses (A) Relaxation of negatively supercoiled DNA (B) Relaxation of positively supercoiled DNA (C) Conversion of negatively supercoiled DNA into positively supercoiled DNA (D) Conversion of double helix into supercoiled DNA

Description : DNA topoisomerase I of E. coli catalyses (A) Relaxation of negatively supercoiled DNA (B) Relaxation of positively supercoiled DNA (C) Conversion of negatively supercoiled DNA into positively supercoiled DNA (D) Conversion of double helix into supercoiled DNA

Last Answer : Answer : A

The amino terminal of all polypeptide chain at the time of synthesis in E. coli is tagged to the amino acid residue: (A) Methionine (B) Serine (C) N-formyl methinine(D) N-formal serine

Description : The amino terminal of all polypeptide chain at the time of synthesis in E. coli is tagged to the amino acid residue: (A) Methionine (B) Serine (C) N-formyl methinine(D) N-formal serine

Last Answer : Answer : C

A 67-year-old male presents with an intraabdominal abscess secondary to perforated sigmoid diverticulitis. The following statement(s) is/are true concerning his intraabdominal abscess. a. Culture will likely reveal a solitary organism b. Both aerobic and anaerobic islets are encountered in 50% of specimens c. The most common aerobic islet will be likely E. coli and other gram-negative enteric bacilli d. The most common anaerobic islet will be a Bacteroides species

Description : A 67-year-old male presents with an intraabdominal abscess secondary to perforated sigmoid diverticulitis. The following statement(s) is/are true concerning his intraabdominal abscess. a. Culture will ... gram-negative enteric bacilli d. The most common anaerobic islet will be a Bacteroides species

Last Answer : Answer: b, c, d Typically an intraabdominal infection results in perforation of a hollow viscus and the ensuing contamination of a normally sterile peritoneal cavity. The normal ... Bacteroides species (especially B. fragilis, Clostridium), and anaerobic cocci are most consistently isolated

Amoxicillin + Clavulanic acid is active against the following organism except (a) Methicillin resistant Staph. aureus (b) Penicillinase producing Staph. aureus (c) Penicillinase producing n. gonorrhoeae (d) ß-lactamase producing E. coli

Description : Amoxicillin + Clavulanic acid is active against the following organism except (a) Methicillin resistant Staph. aureus (b) Penicillinase producing Staph. aureus (c) Penicillinase producing n. gonorrhoeae (d) ß-lactamase producing E. coli

Last Answer : Ans: A

Causative agent for necrotic enteritis is C A. E. coli B. Streptococcus spp. C. Clostridium perfringens D. None of the these

Description : Causative agent for necrotic enteritis is C A. E. coli B. Streptococcus spp. C. Clostridium perfringens D. None of the these

Last Answer : . Clostridium perfringens

Which of the following statements is not correct? (a) In man insulin is synthesised as a proinsulin. (b) The proinsulin has an extra peptide called C-peptide. (c) The functional insulin has A and B chains linked together by hydrogen bonds. (d) Genetically engineered insulin is produced in E.Coli.

Description : Which of the following statements is not correct? (a) In man insulin is synthesised as a proinsulin. (b) The proinsulin has an extra peptide called C-peptide. (c) The functional insulin has A and B chains linked together by hydrogen bonds. (d) Genetically engineered insulin is produced in E.Coli.

Last Answer : (c) The functional insulin has A and B chains linked together by hydrogen bonds.

Which of the following cut the DNA from specific places? (a) E.coli restriction endonuclease I (b) Ligase (c) Exonuclease (d) Alkaline phosphate

Description : Which of the following cut the DNA from specific places? (a) E.coli restriction endonuclease I (b) Ligase (c) Exonuclease (d) Alkaline phosphate

Last Answer : (a) E.coli restriction endonuclease I

A mutant strain of T4 - Bacteriophage, R-II, fails to lyse the E. coli but when two strains R-IIX and R-IIY are mixed then they lyse the E. coli. What may be the possible reason? (a) Bacteriophage transforms in wild. (b) It is not mutated. (c) Both strains have similar cistrons. (d) Both strains have different cistrons.

Description : A mutant strain of T4 - Bacteriophage, R-II, fails to lyse the E. coli but when two strains R-IIX and R-IIY are mixed then they lyse the E. coli. What may be the possible reason? (a) ... . (b) It is not mutated. (c) Both strains have similar cistrons. (d) Both strains have different cistrons.

Last Answer : (d) Both strains have different cistrons.

The given figure is the diagrammatic representation of the E. coli vector pBR322. Which one of the given options correctly identifies its certain component(s)? Bam H1 Sal 1 Pvu II rop ori Pst I Pvu I Eco R I Cla Hin d III tet ampR R (a) ori-original restriction enzyme (b) rop-reduced osmotic pressure (c) HindIII, EcoRI - selectable markers (d) ampR, tetR–antibiotic resistance genes

Description : The given figure is the diagrammatic representation of the E. coli vector pBR322. Which one of the given options correctly identifies its certain component(s)? Bam H1 Sal 1 Pvu II rop ... reduced osmotic pressure (c) HindIII, EcoRI - selectable markers (d) ampR, tetR-antibiotic resistance genes

Last Answer : (d) ampR, tetR–antibiotic resistance genes

Which of the following is the pair of biofertilizers? (a) Azolla and BGA (b) Nostoc and legume (c) Rhizobium and grasses (d) Salmonella and E.coli

Description : Which of the following is the pair of biofertilizers? (a) Azolla and BGA (b) Nostoc and legume (c) Rhizobium and grasses (d) Salmonella and E.coli

Last Answer : (a) Azolla and BGA

.Gene regulation governing lactose operon of E.coli that involves the lac I gene product is (a) negative and repressible because repressor protein prevents transcription (b) feedback inhibition because excess of β-galactosidase can switch off transcription (c) positive and inducible because it can be induced by lactose (d) negative and inducible because repressor protein prevents transcription.

Description : .Gene regulation governing lactose operon of E.coli that involves the lac I gene product is (a) negative and repressible because repressor protein prevents transcription (b) feedback inhibition ... be induced by lactose (d) negative and inducible because repressor protein prevents transcription.

Last Answer : (d) negative and inducible because repressor protein prevents transcription.

Amoebic dysentery in man and animals is caused by C A. Entamoeba (E.) coli B. E. gingivalis C. E. histolytica D. None

Description : Amoebic dysentery in man and animals is caused by C A. Entamoeba (E.) coli B. E. gingivalis C. E. histolytica D. None

Last Answer : E. histolytica

Transformation experiment was first performed on which bacteria? (a) E. coli (b) Diplococcus pneumoniae (c) Salmonella (d) Pasteurella pestis

Description : Transformation experiment was first performed on which bacteria? (a) E. coli (b) Diplococcus pneumoniae (c) Salmonella (d) Pasteurella pestis

Last Answer : b) Diplococcus pneumoniae

Lac operon’ in E. coli, is induced by (a) ‘I’ gene (b) promoter gene (c) β-galactosidase (d) lactose.

Description : Lac operon’ in E. coli, is induced by (a) ‘I’ gene (b) promoter gene (c) β-galactosidase (d) lactose.

Last Answer : (c) β-galactosidase

The wild type E.coli cells are growing in normal medium with glucose. They are transferred to a medium containing only lactose as sugar. Which of the following changes take place? (a) The lac operon is induced. (b) E.coli cells stop dividing. (c) The lac operon is repressed. (d) All operons are induced.

Description : The wild type E.coli cells are growing in normal medium with glucose. They are transferred to a medium containing only lactose as sugar. Which of the following changes take place? (a) The lac operon is ... ) E.coli cells stop dividing. (c) The lac operon is repressed. (d) All operons are induced.

Last Answer : (a) The lac operon is induced

In E. coli, during lactose metabolism repressor binds to (a) regulator gene (b) operator gene (c) structural gene (d) promoter gen

Description : In E. coli, during lactose metabolism repressor binds to (a) regulator gene (b) operator gene (c) structural gene (d) promoter gen

Last Answer : (b) operator gene

acob and Monod studied lactose metabolism in E. coli and proposed operon concept. Operon concept is applicable for (a) all prokaryotes (b) all prokaryotes and some eukaryotes (c) all prokaryotes and all eukaryotes (d) all prokaryotes and some protozoans

Description : acob and Monod studied lactose metabolism in E. coli and proposed operon concept. Operon concept is applicable for (a) all prokaryotes (b) all prokaryotes and some eukaryotes (c) all prokaryotes and all eukaryotes (d) all prokaryotes and some protozoans

Last Answer : (c) all prokaryotes and all eukaryotes

.E.coli cells with a mutated z gene of the lac operon cannot grow in medium containing only lactose as the source of energy because (a) the lac operon is constitutively active in these cells (b) they cannot synthesise functional beta galactosidase (c) in the presence of glucose, E.coli cells do not utilise lactose (d) they cannot transport lactose from the medium into the cell.

Description : .E.coli cells with a mutated z gene of the lac operon cannot grow in medium containing only lactose as the source of energy because (a) the lac operon is constitutively active in these cells ( ... coli cells do not utilise lactose (d) they cannot transport lactose from the medium into the cell.

Last Answer : (b) they cannot synthesise functional beta galactosidase

Gene regulation governing lactose operon of E.coli that involves the lac I gene product is (a) negative and repressible because repressor protein prevents transcription (b) feedback inhibition because excess of β-galactosidase can switch off transcription (c) positive and inducible because it can be induced by lactose (d) negative and inducible because repressor protein prevents transcription.

Description : Gene regulation governing lactose operon of E.coli that involves the lac I gene product is (a) negative and repressible because repressor protein prevents transcription (b) feedback inhibition ... be induced by lactose (d) negative and inducible because repressor protein prevents transcription.

Last Answer : (d) negative and inducible because repressor protein prevents transcription.