The DNA helix is stabilized by I. hydrogen bonds between primary amine groups and keto groups II. stacking interactions III. favorable interaction between hydrophobic groups and hydrophilic groups IV. covalent bonds in the phosphodiester bonds   III, IV   II, IV   I, II, IV   I, II, III, IV

Q: Please describe the hydrophobic effect and its contribution to membrane protein folding

A: The hydrophobic effect being the major driving force for the membrane protein folding 

Q: lease describe a strategy to correctly balance a centrifure rotor if you have 4 samples. 2 samples w...

A: Centrifuge: It is an important tool in the biochemistry lab that through a rapid spinning process u...

Q: Using diagrams of your own design, demonstrate how pH affects the charge distribution of an amino ac...

A: Amino acid is a compound that contains both amine group and a carboxyl group in a same molecules. ...

Q: The folding of a protein  a   involves unfavorable entropy b   involves favorable entropy c   ...

A: Amino acids are biomolecules that are comprised of two functional groups, these are an amino group (...

Q: A newly discovered blob protein folds very rapidly in the presence of protein disulphide isomerase ...

A: Proteins are polypeptide structures consisting of one or more long-chain amino acid residues. They a...

Q: How can you show that σ (sigma factor) does not really accelerate the rate of transcription elongati...

A: Transcription: It is the first step of gene expression where a particular segment of DNA is copied t...

Q: Tryptophan synthase is one of the enzymes synthesized from the trp mRNA. In wild-type E. coli, the t...

A:       Trp-operon is an anabolic operon (do synthesis of tryptophan). requirement of tryptophan is ve...

Q: Assuming you have an agonist, a competitive antagonist, and an easy assay for measuring binding of t...

A: An agonist is a substance that can bring about a specific physiological response by binding to a spe...

Q: The flux through a metabolic pathway with 10 enzymes increases by 10% which the concentration of enz...

A: Enzymes are bio-catalyst which increase the rate of a reaction by lowering the activation energy of ...

Q: Name the experiment shown above and briefly describe how it is set up as well as the role of each co...

A: Gel electrophoresis is a method of separation of protein (SDS-PAGE, polyacrylamide gel electrophores...

Q: Upon the addition of diazonium salts, ketoacids like glutamate and pyruvate forms in the presence of...

A: 1. The correct answer of question is: a) both false    2. The correct answer of question is: d) incr...

Q: Wavelength vs. Absorbance UV - VIS Residual Graph 0.05 -0.05 -0.1 -0.15 -0.2 -0.25 220 240 260 280 3...

A: The residual plot shown here is Wavelength Vs Absorbance plot has unique pattern. Here, plot is show...

Q: Why do we compute for TFM  in soaps. How does one calculate for TFM? What is saponification? Show it...

A: 1. The TFM quantity interprets the quality of soap. It adds moisturizing properties to the product, ...

Q: Give examples of four different types of bond involving hydrogen atoms. (polar covalent, non-polar c...

A: Atoms in various molecules and compounds join together by forming a chemical bond. It is a very stro...

Q: At a replication fork, which strand is synthesized discontinuously? O lagging O leading

A: Replication is an essential process taking place in all living organisms that ensure the maintenance...

Q: Soluble fiber attracts lots of water, swells, and becomes viscous. This characteristic allows it to ...

A: Dietary fibre is a component of plant-based foods that primarily flows through your digestive system...

Q: what is the importance of getting rf value in chromotography tools?

A: Chromatography: Chromatography is an analytical technique in which compounds in a mixture are separ...

Q: Describe the composition of a salt and explain the ways in which salts are important in organisms.

A: Salt is an important constituent for the human and animals. Salt plays numerous important physiologi...

Q: A protein-ligand binding reaction is run. At equilibrium, half the protein is ligand bound, the unbo...

A: Consider the equilibrium reversible binding interaction between a protein P and ligand L forming a p...

Q: You are working in a bioengineering lab, and you are asked to create a peptide with a helix with len...

A: Proteins are the macromolecules composed of amino acids bound together by peptide bond between amino...

Q: The Gibbs free energy can be defined as the maximum amount of non-expansion work performed by a clos...

A:

Q: Listed below are five amino acids. Use the genetic code to determine the exact codon for each amino ...

A: Transition refers to a point mutation that changes a purine nucleotide to another purine or a pyrimi...

Q: what is chromotography and its importance

A: It is a method to separate the mixture of molecules while passing through a column (that contains si...

Q: Is the phosphate functional group negatively charged in both a non-cellular and cellular environment...

A: A phosphate group is an important group that helps in the formation and hydrolysis of ATP molecules....

Q: If saliva alone tests positive for either starch or glucose, how would that affect the interpretatio...

A: Our body has various digestive juices or enzymes that facilitate the digestion process. One such dig...

Q: Describe the role of glutamine and glutamate in amino acid metabolism.

A: Glutamine: It is a non-essential amino acid as it is produced by our body. It is the primary amino ...

Q: At a pH of 7.40, the carbonic acid ratio is, a. 35:1 b. 4:1 C. 20:1 d. 3:1

A: Given Values: pH = 7.4 pKa = 6.1  

Q: A group of researchers are interested in a question about the osmolarity of the cells of a particula...

A: It is assumed that a positive percent difference indicates that cell volume has increased. Water is ...

Q: Does genetically modified fish is good or bad to humans?

A: With increase in human population, food demand is increasing and there is high pressure on the suppl...

Q: 4. Glucose containing Catoms was added to isolated hepatocytes in an experiment. Ifthe glucose was a...

A: Triglyceride molecules are the most common way for fatty acids to be stored and transported within c...

Q: Qualitative Analysis of Proteins Tests

A: Proteins are large biological molecule composed of amino acid, amino acids contain both amino (nh2) ...

Q: A protein P has two identical binding sites for a molecule A. The shape of the protein is dependent ...

A: The Scatchard Plot for a protein-ligand association help to determine the affinity and number of the...

Q: Your supervisor asks you to carry out an in vitro transcription reaction. Unfortunately, they are ca...

A: The genome of an organism is composed of DNA. The DNA is replicated during the time of cell division...

Q: Calculate volume for 10 ug of DNA.

A: DNA concentration is estimated by measuring the absorbance of a DNA sample in buffer solution at 260...

Q: 15. Which of the following statements refer to glycolysis? 1- carbon dioxide is released Il - it occ...

A: During glycolysis glucose is broken down by a series of steps to form pyruvate. Under aerobic condit...

Q: "VDAATFKQANDNG" is the sequence of an a helix. Which of the following interactions is probable? (. d...

A: VDAATFKQANDNG In alpha-helix : H-bonding occurs b/w ith(CO group) and i+4th(NH group) amino acids.

Q: 3. While the binding of Coomassie blue to proteins can lead to accurate measurements of protein conc...

A: Proteins absorb strongly at 280 nm due to the presence of aromatic amino acids (Phenyl alanine, tyro...

Q: how many ATP synthesized by oxidation of NADH by O2? Compare it with the ATP synthesized by oxidatio...

A: Electron transport through complexes I, III, and IV is coupled to the transport of protons out of th...

Q: Which of the following has the highest iodine content?  Which of the following has the lowest meltin...

A: 1. Linoleic acid has the highest iodine content.  2. Unsaturated fatty acids have lower melting poin...

Q: VDAATFKQANDNG” is the sequence of an α helix. Which of the following interactions is probable? (... ...

A: The alpha helix structure is a secondary structure found in folded proteins. The alpha helix in prot...

Q: If a given double stranded DNA undergoes enzymatic hydrolysis targeting only the "a" side in the pho...

A: Here in question, I believe “a” side in Phosphodiester bond refer to the side bond to 3’-C atom of t...

Q: Define biogenic amines

A: Those molecules that made up of carbon and hydrogen are known as organic molecules. Biomolecules are...

Q: The proteins and other substances that bind to the DNA rely mostly on non-covalent interaction to de...

A: Proteins are an important class of biomolecules that are found in all living organisms and are compo...

Q: What distance separates base-pairs in the Watson-Crick model of DNA? O 2.3Å O 3.4Å O 4.5Å O 5.6Å

A: DNA is a double helix structure that is made up of two long strands that are coiled around a central...

Q: 1. Explain the biochemical role of the phosphate that is removed in reaction B. 2. What would be a ...

A: "Since you have asked multiple questions, we will solve the first three questions for you. If you wa...

Q: Evaluate the special traits of microbes in bioremediation of oil spill and their mechanism in degrad...

A: Process of removal of hramful/toxic substance using microbes or plant is called Bioremediation. Such...

Q: Define triacylglycerol

A: In living organisms, fats and oils are most commonly utilized as energy storage. They are fatty acid...

Q: Define triad

A: Those organic molecules are mainly comprised of two functional groups; an amino group and a carboxyl...

Q: What are two examples of macro-molecules formed by dehydration synthesis

A: Macromolecules are large molecules which are composed of small molecules. Dehydration is a chemical ...

Q: What are the advantages and disadvantages of viable cell count and the turbidimetric methods?

A: In turbidimetric determination of cell growth ,after inoculation of the bacterial culture the optica...