Which of the following statements regarding the structure of DNA inside cells is NOT correct?   A. In a DNA duplex, the two strands of DNA contain reverse complementary base pairs.   B. The double helix is held together by phosphate bonds between the purines and pyrimidines.   C. In a DNA duplex, A pairs with T and G pairs with C.   D. The DNA is a double helix that contains a major groove and a minor groove.   E. The double helix is held together by two sugar-phosphate backbones on the outside of the double helix with paired purine and pyrimidine

Q: 5' 3' For numbers 6 to 10, refer to the image above and answer the questions. 9. How are Okazaki…

A: Okazaki fragments : These are pieces of DNA which are the transient components of the lagging strand…

Q: Refer to graph D, the graph level off art point B because.* A D The enzyme is beginning to denature…

A: Enzymes are proteins whose activity is affected by factors that disrupt protein structure, or affect…

Q: Both reducing monosaccharide and disaccharide give positive result in Barfoed's test. Which of the…

A: Barfoed's test is done to differentiate between monosaccharide and disaccharide.

Q: Unfolding of a protein can be termed as a. Reduction b. Oxidation c. Denaturation d. Renaturation

A: Proteins have different levels of structural organization. They are, Primary structure Secondary…

Q: Which of the following glycosidic linkages is hydrolyzed by the a-amylase?

A: α amylase enzyme belongs to the enzyme group of amylase. Amylases hydrolyses the α-1,4-glycosidic…

Q: Please provide a chromatography technique to isolate the protein A from the mixture containing…

A: Protein A :- positively charged Protein B :- negatively charged For separation of charged molecules…

Q: Enumerate 10 examples of oxidation-reduction reaction that occur everyday.

A: Oxidation-Reduction reaction is also called redox reaction involves transfer of electron between two…

Q: A polypeptide with a net positive charge at physiologic pH (~7.4) most likely contains amino acids…

A: The pKa values of the side chains of amino acids determine the net charge on a protein at a…

Q: Which of the following samples are expected to cause a decrease in absorbance over time when…

A: Ensuring adequate light reaching a detector by using  water colloidal solutions in light or X-ray…

Q: N-glycosyltransferase attaches which sugar to the base oligosaccharide to synthesize the B antigen?…

A: Antigens and antibody combination help in determination of blood type. Antigen B binds to antibodies…

Q: What part of the electron transport chain is responsible for the greatest contribution to oxidative…

A: Protein complexes are present in the inner membrane of mitochondria forming an electron transport…

Q: Question 12 C17H29COOH O linolenic acid O non-saponifiable O w-3 fatty acid O All are correct

A: C17H29COOH - It has double bonds at 9, 12, 15th carbon position

Q: Question 17 In a glucometer, glucose oxidase catalyzes the redox reaction of glucose to form…

A: Glucometer is the instrument used to measure and display the amount of glucose level in the blood.…

Q: What are the different blood groups?

A: Based on absence or presence of antibodies and inherited antigen on the Red Blood Cell (RBC)…

Q: A bowl of pasta contains 45 g of carbohydrates. How much energy can possibly be released after its…

A: Total Carbohydrate in pasta = 45g   Molecular weight of Glucose = 180 g/mol

Q: All these enzymes hydrolyze disaccharides in the small intestines EXCEPT O maltase O amylase O…

A: The main carbohydrate contained in our meals is sucrose, lactose, and starches. Cane sugar, milk,…

Q: Gene X is expressed in the developing brain, heart, andlungs of mice. Mutations that selectively…

A: Mutations occur as a result of errors in DNA or viral replication, mitosis, meiosis, or other types…

Q: What ligand on transferrin is responsible for the red color of the iron loaded transferrin. please…

A: Transferrin is a 76 kDa glycoprotein which transport iron through blood plasma in Fe3+ state. It…

Q: Giveee a sufficient biosynthesis for this compound starting from acetyl CoA, S-alanine, S- adenosyl…

A: Here compound 14 is synthesized from L-Phenylalanine, SAM, L-alanine, and Acetyl-CoA  in multistep…

Q: Match the following descriptions to the given choices…

A: Vitamin - The organic molecule and an essential micronutrient which is required by any organism  in…

Q: 18:3CA9,12,15

A: Alpha Linolenic acid is essential fatty acid, highly concentrated in plant oils. Essential fatty…

Q: A peptide was cleaved into two smaller peptides with cyanogen bromide (CNBr) and into two different…

A: The given peptide sequences are: CNBr 1: Gly-Thr-Lys-Ala-Glu CNBr 2: Ser-Met Tryp 1:…

Q: I. True or False   a. The beta-pleated sheets are formed by H-bonds among adjacent regions of the…

A: A. FALSE - The beta-pleated sheets are formed by H-bonds between neighbouring strands.

Q: TRUE OR FALSE 1. In the structure of Aztreonam, addition of a moiety capable of Van de Waals…

A: Aztreonam is an antibiotic like penicillin and it inhibits the peptidoglycan crosslinking enzyme…

Q: a. Name the phosphoinositide generated through the action of PI-5 kinase. b. Name the products…

A: Phosphatidylinositol (PI)-related signalling is important for survival, cell proliferation,…

Q: You'lre hungoy, body Cmuttiple g the following e optim posei ble) which Occur in Our toonelete (A) À…

A: Hungryness is a feeling that stimulates food intake. There are number of pathways that stimulate…

Q: malate + NAD+ oxaloacetate + NADH + H+ If the pH = 7 and [malate] = 0.0010 M, [oxaloacetate] =…

A: Malate + NAD+   →Malate dehydrogenase  Oxaloacetate + NADH + H+ Above reaction is the last step of…

Q: What is an enzyme and what is its function?

A: In our body, various metabolic pathways are present like Glycolysis, glucogenesis, etc. These…

Q: *Which of the following statements about allosteric enzymes is NOT true? Question 10 options: - They…

A: Enzymes are protein molecules that increase the rate of reactions by decreasing the activation…

Q: Which of the following is NOT a unit of concentration?     All of these options are units of…

A: The specific activity is the activity of the enzyme present per milligram of the total enzyme.

Q: Unsaturated fatty acids are commonly esterified at the hydroxyl substituent of glycerol at what…

A: Glycerol : It has 3 hydroxyl groups that get esterified with 1,2 or 3 fatty acids giving…

Q: one more example of chemical (besides acids and alkalis) which can also affect DNA stability.…

A: DNA can be denatured by  process of separating dsDNA into single strands, factors like temperature,…

Q: What name is given to the predominant secondary structure found in wool protein?

A: Because estimating tertiary structure only based on amino acid sequence may not be sufficient,…

Q: In the Ames test shown in Figure 16-17, what is the reason for adding the liver extract to each…

A: Ames test is performed to detect the ability of a chemical to cause mutation in the DNA. Histidine…

Q: When the blood glucose is low, insulin is released from the pancreas to maintain glucose…

A: Introduction:  Homeostasis is the maintenance of a stable internal environment within an organism,…

Q: 5. Convert each of the following 3' to 5' DNA sequences to 5' to 3' DNA sequences. a. 3' ATCG 5' b.…

A: DNA contains all the genetic information of an organism in the form of genes. These genes are…

Q: 1. A protein has a tertiary structure formed by interactions between the side chains of the…

A: The tertiary structure of a protein is stabilized by noncovalent interactions like hydrogen bonding,…

Q: They are related in str They have identical ba C) they are the result of a

A: Proteins are composed of amino acids, which are bound together by peptide linkage. Amino acids…

Q: Using G-25 Sephadex beads (Fractionation range 1000-5000) KD, a sample of Vitamin B12 (MW ~1500 KD)…

A: Note : Hi ! Thank you for the question. We are authorized to answer one question at a time. Since…

Q: A. Lysine: Polar basic: Calcium absorption B. Proline: Nonpolar imino acid: Protein synthesis C.…

A: A. Lysine is basic, has R group that is significantly positively charged at pH 7. It has second…

Q: 2. The kinetic effect of purely competitive inhibitor of an enzyme: (A) Increases K without…

A: Hi. Thank you for the question. As per the honor code, we are allowed to answer three sub-parts at a…

Q: Question 3 N-glycosyltransferase attaches which sugar to the base oligosaccharide to synthesize the…

A: A antigen is the antigen that is important for blood grouping of individuals. Antigen A and Antibody…

Q: Usually found in prokaryotes, regulatory sequences lying adjacent to the DNA being transcribed are…

A: In prokaryotes, the process of transcription and translation occur simultaneously due to the lack of…

Q: Explain the enzymes.

A: Enzyme, a molecule that works as a catalyst in living organisms, regulating the pace at which…

Q: When the blood glucose is low, insulin is released from the pancreas to maintain glucose…

A: Insulin is a polypeptide hormone produced by the beta-cells of the islets of Langerhans (of…

Q: 3. In Drosophila, an X-linked recessive mutation, scalloped (sd) causes irregular wing margins.…

A: A) a scalloped female is crossed with a normal male: -  Xsd Xsd × X Y    Xsd Xsd X Xsd X Xsd X…

Q: human blood plasma contains all the amino acids

A: here they are talking about amino acids present in blood plasma . so our blood plasma contains…

Q: Kappa- and Iota- carrageenans contain 3,6-anhydro-a-D-galactopyranosyl residues.  True  False

A: Carrageenans are a family of hydrocolloidsh used for thickening, stabilising, and gelling solutions…

Q: 4. The enzyme abundantly distributed in adipocytes and germinating seeds are A. proteases B. lipase…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 7. What is the base sequence, specified in the 5' to 3' direction, for a segment of newly formed DNA…

A: The genetic material in most organism is double stranded DNA with the two strands running in…