Q: Which of the following a.B-D-ribose b. thymine c. phosphate which is not a component of…
A: Deoxyribonucleotide means DNA. DNA acts as genetic material in most of the organisms present on the…
Q: Why is it important to identify the N-terminal residue(s) of a protein?
A: Protein is composed of a long chain of amino acids, which are joined by a peptide bond. These…
Q: Histidine: draw the amino acid side chain and give the single and three letter abbreviation.
A: Histidine is known as a semi-essential amino acid because it is synthesized in the body in adults…
Q: The pH at which the Lysine R-group is 20 % dissociated is:
A: Option a) is correct Answer
Q: Why are salt bridges (ionic interactions) in proteins sensitive to pH?
A: Salt bridges : A salt bridge or ion bridge in electrochemistry, is a laboratory device used to…
Q: What is the pI value for the dipeptide Gly-Ala?
A: The pI or isoelectric point is the pH value at which the molecule or the peptide carries no electric…
Q: What are the advantages of a Semi-solid dosage bond?
A: Semisolid dosage forms are a combination of solid and liquid used for local and systemic effects.…
Q: The pKa of the side chain imidazole group of histidine is 6.0. what is the ratio of uncharged to…
A: Amino acids are the monomeric units of proteins. There are 20 amino acids occurring in nature. Amino…
Q: How many charged functional groups will be found on serine at physiological pH?
A: The chemistry of amino acids is complicated because there is a -NH2 group, which is a base and a…
Q: What is the net average charge on the predominant form of lysine at pH values of (a) 2.0, (b) 5.0…
A: Amino acids are organic compounds having carboxyl group and amino group. At extreme low pH, amino…
Q: Indicate which base is (or bases are) the complementarypaired base(s) for each of the…
A: Answer: Introduction: DNA - Deoxyribonucleic acid is a molecule that is used for storage of genetic…
Q: structure of valine at pH of 12
A: An amino acid is fully protonated at low pH, as the pH increases more than pKa of an ionizable…
Q: Which four different bases can be bound to deoxyribose?
A: Nucleosides are a combination of a nitrogen base with pentose sugar. The nitrogen base combines with…
Q: What is the importance of the –R group (variable radical) in an amino acid molecule?
A: Amino acids are compound containing amino group, carboxyl group and a variable R group. R group is…
Q: If guanine, found in the first base triplet, is removed, explain how this would affect the structure…
A: The bases in the template strand of the DNA decide the bases in the strand of mRNA or messenger RNA…
Q: What are the properties of Histidine?
A: Histidine is a dietary essential amino acid because it cannot be synthesized in humans. Histidine…
Q: What are oligonucleotides?
A: Oligonucleotide are short ,single strands of synthetic DNA or RNA that serve as the starting point…
Q: Is the nitrogenous base a pyrimidine or purine? How do you know?
A: The nitrogenous bases are classified into purines and pyrimidines.
Q: How does the R group affect the solubility of polypeptides?
A: The class of organic compounds is represented by R groups which consist of a carbon or hydrogen atom…
Q: Why is hydrolysis of a protein not considered to be denaturation?
A: Hydrolysis is a chemical process in which a molecule of water is added to a substance. Sometimes…
Q: What is the one letter code for this amino acid? What is the pH range that this amino acid will…
A: Amino acids are organic compounds that form the building blocks of proteins that are important for…
Q: Draw the structure of the tetrapeptide 1. H,N - Lys - Ser-Asp- Ala - COOH Assign IUPAC names to each…
A: Protein or polypeptide is a sequence of amino acids in which the amino-terminal of one amino acid is…
Q: Write out the full structure of the tripeptide Val-Phe-Cys.
A: A peptide bond is a type of covalent bond. It connects the amino group of one amino acid with the…
Q: The pKa of the side-chain imidazole group of histidine is 6.0. What is the ratio of uncharged to…
A: A molecule is fully protonated at low pH, as the pH increases more than pKa of an ionizable…
Q: How is the other major pyrimidine ribonucleotide, cytidine, formed?
A: The pathways for the biosynthesis of nucleotides fall into two classes: de novo pathways and salvage…
Q: Give the correct name for the tripeptide
A: An amino acid is an organic compound containing two functional groups namely carboxyl and amino…
Q: What is the pI for histadine?
A: The pI (isoelectric point) is also known as the isoionic point. It is that pH (potential of…
Q: The pKa of the side chain of Histidine is 6.0. What is the ratio of uncharged to charged side chains…
A: Amino acids, which are made up of carbon, nitrogen, oxygen, and hydrogen, as well as the side chain…
Q: What are pyrimidine dimers ?
A: Nucleic acids are macromolecules comprised of carbon, hydrogen, oxygen, nitrogen, and phosphorus.…
Q: Why is cysteine such an important amino acid for defining the tertiary structure of some proteins?
A: Protein has several confirmation levels, out of which quaternary level is the most functional…
Q: What is the second major form of arginine at pH 8.0? What fraction is in this form?
A: Arginine is one of the twenty standard amino acids which take part in the synthesis of proteins…
Q: Sketch a titration curve for the amino acid lysine,and indicate the pKa values for all titratable…
A: The titration curve is considered as the graphical representation of the pH of the solution with…
Q: Draw the structure of each of the following tripeptides:(a) Lysine-phenylalanine-threonine(b)…
A: Peptides are formed from amino acids by losing a water molecule during the formation of the peptide…
Q: what is pyrimidine nitrogenous bases ?
A: A nucleotide has three components namely, A nitrogenous base A pentose sugar (ribose in case of…
Q: What is the source of the methyl group in thymidine?
A: Thymidine (also known to define that they are been stated to describe as the deoxythymidine,…
Q: What is the net charge at pH 7 on a peptide with the following sequence?…
A: Amino acids are the building blocks of proteins which are composed of amino group (NH3+), carboxyl…
Q: What is a polyprotein?
A:
Q: What is the name of the nucleoside (the base and sugar complex) shown? NH HO-CH; H OH. H OH O…
A: Nucleoside These are the structural subunit of nucleic acid such as DNA and RNA. Nucleoside is…
Q: What is the pI for histidine?
A: Histidine is an essential amino acid that cannot be synthesized by the body and needs to be…
Q: What is N-formylmethionine (fMet). ?
A: Proteins are the building blocks of the body. It plays an essential role in the body. Proteins are…
Q: What is the difference between a nucleoside triphosphate and a trinucleotide?
A: Nucleotides are the monomers of nucleic acids, DNA and RNA. A nucleotide is composed of a…
Q: What is required to form a phosphodiester bond withanother nucleotide ?
A: Biochemistry is the study of biochemical functions at the molecular and cellular levels using…
Q: What is the net charge at pH 7 on a peptide with the following sequence? -1…
A: In biochemistry, pH can be referred as the decimal logarithmic value of the reciprocal of H+ ions…
Q: what is the structure of phenylalanyl tyrosyl seryl histidine
A: Amino acids are the molecules that are used to form protein or peptides by their joining with a…
Q: What is a nucleotide
A: Nucleotides are of 4 types based on nitrogen bases. The nitrogen bases in the DNA are adenine,…
Q: Which of the following always base pairs with a pyrimidine?
A: DNA is a biomacromolecule that is a polymer of nucleotides. A nucleotide of DNA contains a…
Q: What structural relationship is indicated by term D-sugar? Why are +glucose and -fructose classified…
A: D and L configuration is shown by the chiral compounds. A chiral carbon is the one which is attached…
Q: The net charge on this peptide at pH 9.5 is
A: A peptide is formed by number of amino acids joined with each other by peptide bond. Amino acids are…
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Solved in 2 steps
- Which of the followinga.B-D-riboseb. thyminec. phosphatewhich is not a component of deoxyribonucleotide?The pKa of the side chain imidazole group of histidine is 6.0. what is the ratio of uncharged to charged side chains at pH 7.0?The pKa of the side chain of Histidine is 6.0. What is the ratio of uncharged to charged side chains at pH 7.0?
- Indicate which base is (or bases are) the complementarypaired base(s) for each of the following:Adenine ___Cytosine ___Guanine ___Uracil ___Thymine ___a peptide has the sequence: Asp-His-Tyr-Asn. What is the net charge on this molecule at pH 7.2?Histidine: draw the amino acid side chain and give the single and three letter abbreviation.
- Sketch a titration curve for the amino acid lysine,and indicate the pKa values for all titratable groups. Also indicatethe pH at which the amino acid has no net chargeDraw the zwitterion for the amino acid backbone of: glycine alanine prolineIdentify the base and sugar in each of the following nucleotides: A. CMP B. dAMP C. dTMP D. UMP