What are the similarity and their differences between Benedict's and Fehling's tests?

Q: Methyl red test Does a Phenol red organism have to be methyl red?

A: It is required to find if the Phenol Red organisms are also Methyl Red in the indicator tests.

Q: What will you come up if you need to create a protein sequence that will be positive to Biuret's…

A: In biuret test, cupric ions from copper sulphate solutions in an alkaline medium forms coordinate…

Q: why does threonine and serine test positive for biuret test?

A: A protein is considered to be a biological macromolecule made up of one or more polypeptide…

Q: If you mix two unknown samples and repeat the Lowry assay, is the absorbance equivalent to the sum…

A: Lawry essay is used to determine the protein level in a solution as it shows a color change…

Q: What would be the result of hexan-2-one or hexan-3-one on Brady's and Iodoform test?

A: Principle of Brady's Test: 2,4-dinitrophenyl hydrazine(DNP) of Brady’s reagent reacts with carbonyl…

Q: Why is MgCl2 added to the PCR reaction?

A: De-novo gene synthesis is becoming an important tool for recombinant DNA technology. The Denovo gene…

Q: 168cm and 57kg. What is the BMI?

A: The BMI is defined as the body mass index of a person and is found by dividing a person's weight in…

Q: What is the difference between Benedict and Barfoid's test?

A: Both Barfoeds and Benedict’s solution are made from same ingredients. But their capabilities are…

Q: Why is the annealing temperature different between samples? How is this computed?

A: Introduction Polymerase chain reaction or PCR  laboratory technique by which millions to billions of…

Q: Why should excess bromine water be avoided in the test for free Tryptophan?

A: Bromine water: a. It is a qualitative test for identifying the alkane or alkene function group…

Q: In a COVID test, why is it necessary to swab all the way at the back of the nose and throat

A: The COVID-19 pandemic has currently affected the whole world and has claimed a huge number of lives.…

Q: How could Qualitative Analysis of Proteins Tests be an essential practical or real-life application…

A: Proteins are large biological molecules composed of amino acids, amino acids contain both amino…

Q: Why is protein testing in human samples important?

A: The protein test measures the total amount of two classes of proteins that are found in the blood.…

Q: What other test(s) are used in parallel to Benedict’s test?

A: Reducing sugar: a. Carbohydrates that contain free aldehyde or ketone group and are in hemiacetal or…

Q: What is the purpose of the S-9 in the Ames test?

A: The Ames test is a generally utilized technique that utilizes bacteria to test whether a given…

Q: What is a Goldbeater’s test? What is the principle involved?

A: Tannins are complex, nitrogen-free polyphenols found in plant tissues. Plants produce tannins to…

Q: How would you be able to distinguish between members of the genus Staphylococcus on…

A: Baird Parker agar is used for the isolation and differentiation of staphylococcus species which are…

Q: What is the use of heat in Seliwanoff’s, Benedict’s and Barfoed’s tests?

A: The Seliwanhoff's, Benedicts's, and Barfoed's tests can qualitatively identify and distinguish among…

Q: How did the Hershey–Chase “blender experiments” confirmGriffith’s results?

A: Based on the Griffith experiment's observations, he concluded that genetic material is the…

Q: What is the action of dexamethasone in the suppression test?

A: The disease is a state which is deviated from the normal condition. A disease can be caused by the…

Q: Explain the purpose of the Kirby-Bauer diffusion test?

A: Kirby-Bauer diffusion test/Disk diffusion method It is most widely used antibiotic susceptibility…

Q: What is Ames test ?

A: Ames Test : It was devised by a scientist 'Bruce Ames ' .  It is also known as Salmonella…

Q: What is the purpose of making a serial dilution?

A: Given: In microbiology, serial dilutions (log dilutions) are used to reduce the bacterial…

Q: How do you interpret Weil-Felix Test? What are the sources of errors of the Weil-Felix Test?

A: A test used in the screening and diagnosis of typhus and other rickettsial infections is Weil-Felix…

Q: Why is the catalase test useful for the differentiation of staphylococci from streptococci?

A: Bacteria are classified into two categories gram-positive bacteria and gram-negative bacteria.…

Q: Briefly describe the Kirby-Bauer test and its purpose.

A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…

Q: Explain the test to perform by gel electrophoresis?

A: DNA is separated according to its size by a process known as Gel electrophoresis. Since DNA is a…

Q: Briefl y describe the Kirby-Bauer test and its purpose.

A: Antibiotics are antibacterial drugs. Antibiotic drugs are commonly used in the treatment and…

Q: Why was there a greater A260 absorbance reading for your DNA sample that was incubated at higher…

A: Hyperchromicity is the increase in optical density of a substance at a particular wavelength.

Q: What is the DNA concentration (ug/ml) of an undiluted sample with A260 reading without background of…

A: Pure DNA molecule is extracted by measuring the absorbance of DNA molecule at 260 nm. Pure DNA shows…

Q: What is the importance of performing the Modified Allen Test? Give at least three.

A: Modified Allen test: This test is done to assess the integrity of the ulnar artery, To perform this…

Q: What is the purpose of conducting a modified Furter-Meyer Test? What is the principle behind this…

A: Lipids are the organic biomolecules molecules that are nonpolar solvent and they are composed of…

Q: What are other major contributions of Alfred Hershey besides the Waring Blender experiment?

A: Genes are the fundamental unit of heredity. They store genetic information in the form of DNA, which…

Q: What is the Results of the fluctuation test and replica platingexperiments?

A: Mutation is defined as a change or alteration in the nucleotide sequence which in turn alters the…

Q: what components makes a test effective?

A: Testing effectiveness It refers to the effectiveness of how testing is performed or how the goal is…

Q: discuss the purpose of the Methyl Red and Voges-Proskauer Test. What makes each one unique and why

A: Methyl Red (MR) and Voges-Proskauer (VP) broth are used for the tests for Methyl Red and…

Q: What test is use to detect the presence of nucleoprotein in DNA? benedicts test biuret…

A: Answer is biuret test   •Benedict's Test is used to test for simple carbohydrates. The Benedict's…

Q: What type of biochemical test is this? Which group of organisms did we use it to differentiate?…

A: Biochemical test for detection of bacteria.

Q: Why does RNA give a positive result to Biuret's test?

A: Biuret test is a chemical test used for detecting the presence of peptide bonds. In presence of…

Q: Why is cobalt chloride paper used in the experiments?

A: The indicators are used in the experiment to detect the distinct observable change. Many types of…

Q: purpose of the Methyl Red and Voges-Proskauer Test. What makes each one unique and why?

A: The methyl red reagent is a solution that detects the acidic pH of the culture. Voges-proskauer test…

Q: What is the vitro mixture  ?

A: All living organisms are a complex entity of a lot of chemical and biological reactions. A…

Q: What was the outcome of the Hershey-Chase Warring Blender Experiment?

A: The aim of the Hershey-Chase Waring Blender experiment, was to find out if protein is the genetic…

Q: What is function of ''quinoline molybdophosphoric acid'' in the Phosphate Gravimetric Quimociac…

A: Gravimetric Analysis: It is a technique by which an analyte amount can easily be determined through…

Q: What is the principle of Bial's test?

A: Bial’s test is known as biochemical test which is used to detect the presence of carbohydrates as…

Q: What is the point of doing a modified Furter-Meyer Test? What is the underlying idea of this test?…

A: Modified Furter-Meyer Test is used to detect the presence of alpha-tocopherols.

Q: Why do we use 'corrections' to the Creatinine clearance test?

A: Creatinine clear test is used to assess the kidney functions, The amount of the kidney that is…