How will you know when the endpoint of the titration is reached? Why is it necessary to mix the solution after you add base?. Single line text.

Q: You want to set up a 1:10 dilution series, so that you can plate a 10-1, 10-2, and a 10-3dilution;…

A: It is basically done for counting the  microorganisms like viruses, bacteria etc  from an unknown…

Q: Give the positive result for the test of pyrimidines.

A: The nitrogenous bases of nucleic acids are classified into two. They are, the purines and…

Q: The rate of migration of nucleic acid fragments through an agarose gel is determined by the_

A: The gel electrophoresis is used to separate DNA fragments based on their size, the gel…

Q: If I want to make a 100mL buffer that has 2% SDS, 100mM tris pH 8, 10mM EDTA, and proteinase K…

A: Introduction: Buffer is defined as a solution that resists change in pH on the addition of acid or…

Q: What does BCR ABL stand for?

A: B-cell receptor (BCR) serve in recognition of the antigens and are present at the surface of the B…

Q: Identify the following nucleotide: ball & stick v labels Name:

A: Bothribonucleic acid (RNA) and deoxyribonucleic acid (DNA) are composed of nucleotides. A nucleotide…

Q: Which of the following below will show a NEGATIVE result in Huble’s test? Group of answer choices…

A: Lipids are carboxylic groups is attached to a long hydrocarbon chain. On the basis of the presence…

Q: The conjugate of a very weak base is a(n) a. Very weak acid d. Very weak base b. Weak acid е. Weak…

A: The conjugate of a very weak base is a strong acid.  A conjugate acid is formed when a proton is…

Q: True or False.  Removal of ribose-phosphate from cytidylic acid yields cytidine.

A: DNA and RNA are made up of long chains of nucleotides. Sugar molecule, ribose in RNA, and…

Q: What are nucleotides?

A: DNA / RNA is used by all living species to store their genetic information. This genetic information…

Q: Each liter of an intranasal antibiotic solution contains 160 mg of gentamicin. You have 2-mL…

A: A number of gram-negative infections are treated with the aminoglycoside antibiotic gentamicin.…

Q: What will happen if there are inconsistencies on the tablet diameter and thickness of a product…

A: The diameter and thickness of a product batch is inconsistent many times and it may vary from…

Q: In a polyacrylamide gel electrophoresis, the gel consists of specific gel components. name them

A: A type of gel electrophoresis (GE) that is used to quantify and separate desired protein molecules…

Q: A gel shows undigested lane 3000 bp while digested lane shows BS 2000 and repeat 1000. what does…

A:

Q: When pure hemoglobin (molecular mass of 64,000 Da) is separated by the following methods, what major…

A: Hemoglobin is a tetramer composed of two alpha and two beta subunits. The Molecular weights of the…

Q: Why is spelt flour considered as wheat flour?

A: Spelt flour/Triticum spelta It is an anicent whole grain grown in many parts of the world.  Spelt…

Q: Why do we say. Blood Urea, not Serium Urea..... Likewise, why do we say... Serium Kiriatinine and…

A: The nitrogenous end products of metabolism are urea and creatinine. Urea is the major metabolite…

Q: Write or draw out how to make a 1:5 serial dilution of a stock solution. You will need to dilute it…

A: For biochemical and microbial purposes, there is a requirement to dilute some samples while…

Q: What is the importance of being able to separate protein fractions in a sample?

A: Protein fractionation is the process of separation, isolation of proteins from a sample. The…

Q: Why is potassium solution injection lethal

A: Potassium is an essential ion in the balance of our body system. Their concentration must not be…

Q: What amino acids are present on the unknown sample based on the results below? Test

A: Ninhydrin Test is used to test the presence of ammonia, amines or alpha amino acids or primary…

Q: Why is Tm related to base composition?

A: DNA is the double-stranded molecule that is the genetic material in most organisms except few…

Q: Describe how the following technique work on protein purification? ammonium sulfate precipitation

A: Proteins are organic macromolecules that assist in maintaining the structural and functional…

Q: You have a 50X stock solution of TAE buffer, but you need 2 L of a 1X solution for electrophoresis.…

A: TAE buffer used in agarose gel electrophoresis for the seperation of DNA and RNA.

Q: why would you perform an indole test?

A: The inside test is a qualitative approach of the biochemical analysis of bacteria that determine…

Q: What is meant by the term plating efficiency?

A: The cells are cultured over the plate at the particular growth conditions within a particular time…

Q: What is the name of the nitrogenous base to the right?

A: The nitrogenous base are also known as Nucleobases. Four different types of nitrogenous bases are…

Q: Uracil is an example of the _____________ class of nitrogenous bases.

A: The genetic material DNA is made of different types of nitrogenous bases. These nitrogenous bases…

Q: Identify if the nucleotide is GMP, CMP, AMP, UMP or TMP

A: Nucleic acids are major macromolecules made up of nucleotides. These large molecules are comprised…

Q: Why does the cyclization of sugars create an additional chiral center in that molecule? What is the…

A:

Q: Using the TABLE shown, identify which proteins require pre-treatment with performic acid before…

A: The 2 and 4 protein requires pre- treatment with performic acid before amino acid sequencing.  The…

Q: What does the “=“ mean when used in a macromolecule when written out.

A: Chemical bonds are formed due to the attractions that form linkages between ions, atoms, and/or…

Q: In making red blood cell suspension, why do we need to wash red blood cells in saline?

A: Red cell suspension is a common reagent used for many serologic procedures. Red cell suspensions…

Q: With thousands of different spots on the gel, how are the identities of the proteins ascertained?

A: The protein of protein purification involves the separation of the protein and non-protein parts of…

Q: Instead of Molisch's test, what specific test can be used to detect the presence of pentose sugar?…

A: Molisch's test are used for the detection of carbohydrate.

Q: What is the difference between copay, coinsurance, and deductibles?

A: The inpatient refers to client who is admitted to the hospital for the treatment of his/her illness…

Q: what are the necessary conditions for the okazaki fragments

A: Nucleic acid synthesis occurs solely within the 5'->3' direction as a result of the…

Q: One of the following is a physical denaturation of proteins except: X-ray irradiation Vigorous…

A: Protein denaturation is a wide concept and dependent on multiple factors. whenever the protein is…

Q: ___________ are nitrogen bases with one. They include __________ and ___________.

A: Pyrimidines are nitrogen bases with one cyclic ring. They include Thymine, Cytosine, and Uracil.

Q: An unknown sample was titrated with CH3COOH. After making the titration curve, no steep change was…

A: CH3COOH is a weak acid hence it will not dissociate completely in the aqueous solution to form…

Q: What is the role of liquid chromatography in protein purification?

A: Introduction: Purified proteins are very helpful biochemical reagents, especially for getting…

Q: Complete the table below by adding (+) or (–) if each of the sample (amino acid or protein)below…

A: biuret test:            Compounds with peptide bonds forms purpule colour when treated with biuret…

Q: Which method could be employed to identify a protein?

A: All of  the above

Q: What are the different chemical test for the biomolecule nucleic acid?

A: Nucleic acids  are of two types: RNA and DNA  DNA  It is defined as a genetic material that has all…

Q: What is the driving force behind paper chromatography?

A: Chromatography is a laboratory method of separating the mixture into individual components. It…

Q: What is the basis for the separation of proteins by the following techniques?  (a) gel-filtration…

A: Chromatography is a technique in biophysics that determines three important steps of a mixture of…

Q: What do you mean by Rouleaux formatin?

A: