A posttranslational modification that directs a polypeptide to a specific location is called a _____________ modification.

Q: What would happen if there was no methionine in the cell?

A: Amino acids are organic molecules that are the basic unit of proteins. Methionine is an essential…

Q: triphosphates (dNTPs) or nucleoside triphosphates (NTPS).

A: Viruses are not capable of translating the proteins,  thus they are dependent on host machinery for…

Q: What useful information might you get if you did determine the Nterminal amino acid as a separate…

A: As we known proteins are composed of a long chain of amino acids that are joined by the peptide…

Q: Question 38 The activated intermediate in the formation of the peptide bond is: O glucose O glucose…

A: A peptide bond, also known as a eupeptide bond, is a chemical connection made by combining the…

Q: QUESTION 1 Regarding the following peptide sequence, which of the following statements is FALSE?…

A: *Note: Since you have asked multiple question, we will solve the first question for you. If you want…

Q: A polypeptide has a high pI value. Suggest which amino acid residues might comprise it.

A: The isoelectric point (pI) is the pH of a solution at which the net charge of a protein becomes…

Q: A posttranslational modification that directs a polypeptide toa specific site is called a…

A: Post-translational (PTM) modification is considered as the process, in which protein undergoes…

Q: sequence of amino acids.

A: The central dogma of molecular biology is the concept which explains the flow of genetic…

Q: The antifungal drug nystatin kills fungal cells in part through formation of membrane pores that…

A: Antimicrobials are agents that either kill microorganisms (microbicidal) or stop their growth…

Q: What special purpose methionine serves

A: Methionine is referred to as an amino acid comprises of the sulphur group responsible for forming…

Q: QUESTION 37 Which of the following types of mutations is LEAST likely to alter the encoded protein?…

A: Mutation is defined as a sudden change or alteration in sequence of DNA or variation in the…

Q: Two amino acids are each specified only by a single triplet. Identify these two amino acids and the…

A: A specific sequence of three consecutive nucleotides that is part of the genetic code and that…

Q: Define ε-amino group

A: The amino group is the -NH2  substituent in a carboxyl group. Amino groups are components of amino…

Q: What base is found in RNA

A: DNA and RNA are are nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid…

Q: QUESTION 23 structure. The complete denaturation of a protein that is made of only a single…

A: Denaturation is a process in which proteins lose their native conformation i.e. normal, biologically…

Q: D-Erythrulose in cyclic form:

A: Erythrulose is chemically teterose carbohydrates.formula for erythrulose is C4H8O4. It is used in…

Q: This question refers to the mRNA sequence below: 5'-AGCUGAUGGGCUGGUGCCGAGAAAGUUAGGUAA-3' What is the…

A: During translation, the mRNA is read in triplets. The incoming tRNA reads the three bases at a time…

Q: Peptides Drawing and Naming Peptides 1.) Glu-Ser-Ala 2.) Gly-Tyr-Leu-Val

A: The peptides are short chains made of less than 20 amino acids. The proteins are made of more than…

Q: QUESTION 16 The side chain of is most hydrophobic O valine O alanine lysine glycine serine

A: Amino acids are compounds containing carbon, hydrogen, oxygen and nitrogen. They serve as monomers…

Q: Treatment of isovaleric aciduria : a. Arginine b. Lysine c. Glycine d. Methionine

A: Isovaleric aciduria occur due to defective catabolism of leucine due to deficiency of enzymes…

Q: Which of the following peptides will likely form a loop or turn in a protein and explain why

A: The turns are the third type of secondary structure. These are short, U-shaped secondary structures,…

Q: How many nucleotides code for one amino acid

A: INTRODUCTION Amino acid These are molecules that combines to form protein.

Q: What are caspases?

A: Caspases is the abbreviation of Cysteine-aspartic proteases that belong to the protease enzymes…

Q: The _____________ is an explanation for why there are fewer tRNAs than expected in living cells.

A: proteins are the polymers of amino acids, where the tRNA anticodon brings the amino acid in a…

Q: A pyrimidinr always pairs with a ___________

A:

Q: Acid hydrolysis of polypeptides may lead to complete destruction of tyrosine residues.

A: Proteins and peptides are macromolecules made up of covalently bonded amino acid residues in linear…

Q: QUESTION 2 Most amino acids exist in the L-form because O Stereospecific binding is maximum in this…

A: Amino acid: Amino acids are the building block of proteins and there are about 300 amino acids…

Q: Question 25 This molecule `NH A can form 3 hydrogen bonds in base pairing B is found in DNA only…

A: The genetic material stores information in the form of sequence of nucleotide.

Q: What feature of eukaryotic translation is especially responsible for its efficiency?

A: Genetics is the investigation of heredity. Heredity is a natural interaction whereby a parent passes…

Q: Amino Acid Sequence:

A: The amino acids are the building blocks of proteins.  They are small organic molecules that contains…

Q: Why uracil replace thymine

A: Nucleotide makes up the DNA and RNA. There are three components that make a nucleotide Nitrogenous…

Q: The addition of amino acids to a growing polypeptide Proteins known as _______?

A: The central dogma of biology explains the flow of information from genes to protein by two…

Q: Which of the following is the start codon?     GUC     CCC     UAG     AUG

A: Start codon It is the first codon of the mRNA transcript that the ribosome translates. This codon is…

Q: Posttranslational processing enzymes may cleave a____________ or add chemical constituents to it

A: Translation is the process of formation of protein molecules from an mRNA molecule on ribosomes.…

Q: Why do allosteric enzymes have two types of binding sites?

A: Allosteric enzyme : It are enzymes that change their conformational ensemble upon binding of an…

Q: Glutamate, a 5-carbon amino acid, is the precursor of three other amino acids that contain a…

A: Glutamate is a negatively charged R group amino acid that is hydrophilic in nature where the R -…

Q: True or false: A polypeptide amino acid sequence ultimately determines the function of a protein. 

A: The proteins are made up of amino acids and these amino acids are together bounded by polypeptides.…

Q: List three categories of posttranslational processing

A: Many polypeptides are covalently modifird, either while they are still attached to the ribosome…

Q: PKU is an abbreviation for what disorder? What are the symptoms of PKU? How can PKU be treated for a…

A: Phenylketonurina is a rare inherited disorder that causes an amino acid called phenylalanine to…

Q: In the peptide Ser-Cys-Ala-Gly, the N-terminal end is glycine. O cystein. O serine. Oalanine.

A: A peptide is a chain of amino acids, in which the individual amino acids are linked together through…

Q: Question 19 Which of the following amino acids is not part of tetramer that is bounded to NAM and…

A: Answer--

Q: Interactions that make up the three-dimensional structure in proteins.

A: Amino acids Proteins are the polymers of nitrogenous compounds called amino acids. Each amino acid…

Q: _____________ is an amino acid derivative of phenylalanine.

A: Phenylalanine is an aromatic amino acid

Q: What is the meaning of the statement “The code is redundant but not ambiguous?”.

A: Base-pair substitution, deletion, or addition constitutes a mutation in a gene. The effect of such…

Q: Why can aldoses and ketoses both behave as reducing sugars?

A: Reducing sugars are saccharides that contain free aldehyde or ketone groups that react with reducing…

Nitrogen metabolism

Nitrogen metabolism is the synthesis, utilization or uptake, breakdown, and excretion of nitrogenous compounds in the body. The nitrogen metabolism encompasses nitrogen fixation, biosynthesis, and the breakdown of amino acids, purines, and pyrimidine. Since nitrogen-containing compounds are required for various life processes, nitrogen is an important element of life.