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Home ❭ Questions ❭ One Liners ❭ The scientist who observed that there exists a relationship between the contents of purines and pyrimidines in DNA structure
The scientist who observed that there exists a relationship between the contents of purines and pyrimidines in DNA structure
Biochemistry Pharmacist Competitive Exams
Q. The scientist who observed that there exists a relationship between the contents of purines and pyrimidines in DNA structure
Ans → Erwin Chargaff
Explanation →
This question is taken from the test/quiz post: Biochemistry Important One Liners Questions On Nucleic Acids and Nucleotides - attemp/practice
More oneliners in - Biochemistry Important One Liners Questions On Nucleic Acids and Nucleotides
Q. The scientist who observed that there exists a relationship between the contents of purines and pyrimidines in DNA structure
Ans → Erwin Chargaff
Explanation →
Q. The base pair G-C is more stable and stronger than A-T due to
Ans → 3 Hydrogen bonds
Explanation →
Q. Under physiological condition, the DNA structure is predominantly in the form
Ans → β-Form
Explanation →
Q. The number of base pairs present in each turn (pitch) of B-form of DNA helix
Ans → 10
Explanation →
Q. The backbone of nucleic acid structure is constructed by
Ans → Phosphodiester bridges
Explanation →
Q. The nucleotide that serves as an intermediate for biosynthetic reaction
Ans → UDP-glucose , CDP- acylglycerol , S Adenosylmethionine
Explanation →
More one-liners in - Biochemistry
Q. Properties of a substance that can be observed without using a chemical reaction that would change the substance.
Ans → physical property
Explanation →
Q. Technological process, which consists of mixing or inclusion of the therapeutic substance with an excipient or their mixtures,
Ans → embedding
Explanation →
Q. Carbohydrates are the polyhydroxyaldehydes or ketones, or compounds which produce them on
Ans → Hydrolysis
Explanation →
Q. A herpes infection of the newborn, generally caused by infection during birth
Ans → neonatal herpes
Explanation →
Q. An interval before exponential growth of a microbial population during which cells adjust to a new environment
Ans → lag phase
Explanation →
Q. Vaccine composed of whole pathogen cells or viruses that have been killed or inactivated through treatment with heat, radiation, or chemicals
Ans → inactivated vaccine
Explanation →
Q. The metabolite among the citric acid cycle intermediates performing a catalytic role
Ans → Oxaloacetate
Explanation →
Q. A known volumes are vacuum filtered aseptically through a membrane with a pore size small enough to trap microorganisms, which are counted after growth on plates
Ans → membrane filtration technique
Explanation →
Q. A bond where elections are equally shared between two atoms.
Ans → nonpolar covalent bond
Explanation →
Q. Region of the respiratory tract containing the vocal cords; also referred to as the voice box
Ans → larynx
Explanation →
Q. A graph of the energy of a reaction against the progress of the reaction.
Ans → energy diagram
Explanation →
Q. Glycoprotein expressed on the surface of all nucleated cells and involved in the presentation of normal “self” antigens and foreign antigens from intracellular pathogens
Ans → MHC I molecule
Explanation →
Q. The backbone of nucleic acid structure is constructed by
Ans → Phosphodiester bridges
Explanation →
Q. DNA-binding proteins found in eukaryotes and archaea that aid in orderly packaging of chromosomal DNA
Ans → histones
Explanation →
Q. When a complex is formed between a metal ion and an a ligand in solution, the equilibrium may be expressed by a constant which is related to the free energy change for the process
Ans → stability constant
Explanation →
Q. The element involved in the protection of cells against the damage of H2O2 and other free radicals
Ans → Selenium
Explanation →
Q. Isomers that differ in the order the atoms are placed. They have the same number of atoms, just in a different order.
Ans → Constitutional Isomers
Explanation →
Q. A solution property that changes if the concentration of that solution changes.
Ans → colligative property
Explanation →
Q. When parts of the nucleus of atoms are forced together to create a new one.
Ans → nuclear fusion
Explanation →
Q. Ascorbic acid is not synthesized in man due to lack of the enzyme
Ans → L-Gulonolactone oxidase
Explanation →
Q. A type of strong oxidizing agent that causes free radical formation in cells; can be used as a disinfectant or antiseptic
Ans → peroxygen
Explanation →
Q. The enzyme defect in acute intermittent porphyria
Ans → Uroporphyrinogen synthase I
Explanation →
Q. The disorders characterized by decreased synthesis or total absence of globin chains of hemoglobin are collectively known as
Ans → Thalassemias
Explanation →
Q. The major dietary energy sources, besides their involvement in cell structure and various other functions is
Ans → Carbohydrates
Explanation →