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The nitrogenous base not present in DNA structure
Biochemistry Pharmacist Competitive Exams
Q. The nitrogenous base not present in DNA structure
Ans → Uracil
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. An individual capable of transmitting a pathogen to another individual without becoming infected
Ans → passive carrier
Explanation →
Q. Name the five vitamins required by pyruvate dehydrogenase or -ketoglutarate dehydrogenase complex
Ans → Thiamine, riboflavin, lipoic acid, niacin, pantothenic acid,
Explanation →
Q. Non-fluid colloidal network or polymer network that is expanded throughout its whole volume by a fluid.
Ans → gel
Explanation →
Q. Compounds that have the same molecular formula but different structural formulas
Ans → Isomer
Explanation →
Q. The shorter identical peptide chains of an antibody molecule (two per antibody monomer), composed of variable and constant region segments
Ans → light chains
Explanation →
Q. Region of the respiratory tract containing the vocal cords; also referred to as the voice box
Ans → larynx
Explanation →
Q. Name the stage of replication during which various proteins bind to the origin of replication to begin the replication process
Ans → initiation of DNA replication
Explanation →
Q. Name a property, which serves as basis for the process whereby surfactants are used for the removal of foreign matter from surfaces (including dirt from clothes or body surfaces).
Ans → detergency
Explanation →
Q. Some atoms can share two pairs of electrons to form a double bond (two covalent bonds).
Ans → double bond
Explanation →
Q. A term applied an object or molecule that does not possess symmetry.
Ans → asymmetry
Explanation →
Q. A a stain that produces colour around the structure of interest while not coloring the structure itself
Ans → negative stain
Explanation →
Q. Name the large group of antigens bound by antibodies; large enough to settle out of fluid suspension
Ans → immune complex
Explanation →
Q. Antibody that is a monomer when functioning as a receptor on surface of B cells but a pentamer when secreted in response to specific pathogens;
Ans → IgM
Explanation →
Q. The phospholipid that prevents the adherence of inner surfaces of lungs
Ans → Dipalmitoyl lecithin
Explanation →
Q. A compound possessing hydrophobic and hydrophilic groups in its structure is known as
Ans → Ampipathic
Explanation →
Q. Name a membrane-bound organelle (not part of the endomembrane system) that produces hydrogen peroxide to break down various types of molecules;
Ans → peroxisome
Explanation →
Q. The following anticoagulant binds with Ca2+ and prevents blood clotting
Ans → Oxalate
Explanation →
Q. Transition of a suspension of solid, usually colloid, particles in a liquid (sol) to an apparent solid, jelly- like material
Ans → sol-gel transition
Explanation →
Q. Vehicle often ethanol used in combination to increase the solubility of drugs.
Ans → cosolvent
Explanation →
Q. Name the types of host cells that a particular virus is able to infect
Ans → host range
Explanation →
Q. Name the bacteria that have more than 50% guanine and cytosine nucleotides in their DNA
Ans → high G+C gram-positive bacteria
Explanation →