Question 7 About the helical structure of DNA: A The DNA is always in the form of a type A closed helix (left rotation), whatever its composition in nucleotides. B DNA is rich in positive electrical charges at physiological (pH 7.4). C The helix is established between two com- plementary regions of the same strand. D The helix is formed by an esterification re- action between two strands. E All the above statements are wrong

Q: Question 10 The proteins and other substances that bind to the DNA rely mostly on non-covalent…

A: A substance that is mainly made up of carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus…

Q: Four of the five answers listed below are bases used to construct nucleic acids. Select the…

A: DNA is the genetic material in all the living organisms.

Q: Which of the following disaccharide repeats is the most stable towards hydrolysis?…

A: Hydrolytic stability is the resistance of a cured polymer material to reverting to a semisolid or…

Q: QUESTION 18 Which of the following is/are true regarding the enzyme PRIMASE? Primase functions…

A: Replication is a biological process by which DNA (deoxyribonucleic acid), the genetic material of…

Q: QUESTION 5 Which of the following amino acids is most unlikely to be present in a beta sheet?…

A: In the β-pleated sheet, the sheet are formed due to hydrogen bonding between atoms on the peptide…

Q: Question 24 The following statements best describe the RNA structure and/or function except A The…

A: RNA or ribonucleic acid composed of ribose sugar. The basic unit of RNA is the nucleotide.

Q: Which of the following is considered a "palindrome" in DNA? O GGATCC O AATTAA O CGATAGC

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

Q: Question 51 The direct sequence of amino acids as dictated by DNA is the quaternary primary…

A: INTRODUCTION Structure of protein The protein possess 4 structures as Primary, secondary, Tertiary…

Q: Question 39 A double helix makes one complete turn every 10 residues (3.4nm). Therefore the distance…

A: DNA is a genetic material, composed of deoxyribose sugar, phosphate group, and nitrogenous bases.…

Q: QUESTION 14 COVID-19 has been shown to effect hemoglobin's ability to bind and transport oxygen…

A: Hemoglobin is an oxygen transport protein present in the RBCs. Hemoglobin transports oxygen from the…

Q: The building blocks of the DNA molecule are known as purines amino acids nucleotides polysaccharides…

A: Building block composition:[DNA]                            DNA entangled with chemical composed…

Q: Each tRNA has unique identity elements recognized by its specific enzyme involved in charging it…

A: Proteins are polymers of amino acids that are linked by the peptide bond. Each amino acid in the…

Q: 4 The complete genome of the simplest bacterium known, Mycoplasma genitalium, is a circular DNA…

A: Introduction-- Dna topoisomerase enzyme act to regulate Dna supercoiling by catalyzing the winding…

Q: will cause Short wavelength UV radiation wavelength O 2540-2600 pm; protein denaturation

A: Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 to 400 nm (750 THz),…

Q: Question 9 Which of the following is the missing link between DNA and Proteins according to the…

A: Central dogma  Central dogma a pictorial representation of genetic material which tells us how a…

Q: Question 16 (1 point) Match the description with DNA or RNA. DO Most often found as a double helix…

A: The objective of the question is to match the given descriptions with either DNA or RNA, which are…

Q: Question 52 All of the following describe the general mechanism of DNA synthesis EXCEPT: A synthesis…

A: DNA replication is the important step to protein synthesis. At the nucleoplasm of cell DNA…

Q: QUESTION 12 A researcher named Erwin Chargoff determined the relative proportion of the different…

A: • Percentage of Cytosine (C): 24%• Percentage of Adenosine (A): 24%• Percentage of Thymine (T):…

Q: The following is a strand of DNA. Please write out the correct mRNA that ll DNA strand and make sure…

A: Messenger RNA is a single-stranded RNA molecule that is complementary to one of the DNA strands of a…

Q: Which of the following linkages/bonds is NOT found in the DNA molecule? A phosphodiester bond B…

A: The DNA molecule is held by a number of bonds:  1. Phospho-ester bond between the phosphate group…

Q: Question 1 Both DNA and RNA molecules are similar in that they both contain: deoxyribose O…

A: DNA - Deoxyribonucleic acid RNA - Ribonucleic acid  DNA act as a genetic material. RNA can be…

Q: Ultraviolet light principally causes which of the following dmages to DNA? A methylation of specific…

A: UV light can kill cells by damaging DNA to an irreversible extent. The light initiates reaction…

Q: föllowing are characteristics of Transfer RNA except: O a. Only one loop has the codon that is…

A: d option

Q: Question 1 In DNA, with which base does guanine pair? O another guanine O cytosine O thymine O…

A: DNA, or deoxyribonucleic acid, is a molecule that carries the genetic instructions used in the…

Q: Which of the following statements is true of eukaryotic transcription? Exons are spliced out from…

A: Introduction  A genome is consisting of transcriptionally active genes. These genes form RNA…

Q: Question 7: Peptide nucleic acids (PNAS) exhibit greater stability as heteroduplexes with DNA (ie…

A: PNA peptide nucleic acid is the artificial Nucleic acid structurally similar to nucleic acid.

Q: Which of the following is the convention used to specify the sequence of bases in DNA? (A) start at…

A: Answer - option D.

Q: Amino Acids that carry a positive charge of +1 at pH 7 are

A: Amino acids are organic compound having two functional group namely carboxyl and amino. At extreme…

Q: In DNA one strand runs "upside-up" while the other one runs in the opposite direction, "upside-down"…

A: The deoxyribonucleic acid (DNA) is the genetic material that consists of all the information…

Q: Question 19 Based on the hydropathic index plot below, where in the 3D structure of the protein…

A: To study hydropathy index, we should first note down the following points: Integral proteins are…

Q: Which of the following statements is TRUE regarding the R-groups of amino acid residues in an…

A: Proteins are important macromolecules and are organized into four different levels of structure. The…

Q: Question 2 The width of the double helix is 3.4 nm. O True O False

A: Double helix is description given to DNA double strand, which have two strands twisted among each…

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.