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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. The phospholipid that prevents the adherence of inner surfaces of lungs
Ans → Dipalmitoyl lecithin
Explanation →
Q. The lipoproteins synthesized in the intestinal mucosal cells from the absorbed lipids are
Ans → Chylomicrons
Explanation →
Q. Molecules that have the same molecular formula and sequence of atoms yet differ in their 3-D orientation.
Ans → Stereoisomer
Explanation →
Q. Name the molecule that is too small to be antigenic alone but becomes antigenic when conjugated to a larger protein molecule
Ans → hapten
Explanation →
Q. When parts of the nucleus of atoms are forced together to create a new one.
Ans → nuclear fusion
Explanation →
Q. The metabolic pathway concerned with the conversion of L-xylulose to D-xylulose is
Ans → Uronic acid pathway
Explanation →
Q. Name the five vitamins required by pyruvate dehydrogenase or -ketoglutarate dehydrogenase complex
Ans → Thiamine, riboflavin, lipoic acid, niacin, pantothenic acid,
Explanation →
Q. The enzyme that is regulated by feedback inhibition in heme synthesis is
Ans → δ -Aminolevulinate synthase
Explanation →
Q. Enzymes lose the catalytic activity at temperature above 70C due to
Ans → Denaturation
Explanation →
Q. A Solid spherical particles of micron-size range, used as matrix dosage forms.
Ans → microsphere
Explanation →
Q. The disorder in which the patients have an irresistible urge to bite their fingers and lips is
Ans → Lesch-Nyhan syndrome
Explanation →
Q. An organism that requires oxygen at levels lower than atmospheric concentration
Ans → microaerophile
Explanation →
Q. The joint effect of two or more drugs such that the combined effect is less than the sum of the effects produced by each agent separately.
Ans → Antagonism
Explanation →
Q. A compound possessing hydrophobic and hydrophilic groups in its structure is known as
Ans → Ampipathic
Explanation →
Q. The granulocytes similar in origin and function to basophils, but residing in tissues
Ans → mast cells
Explanation →
Q. Science of preparation of drugs, dosage forms, and drug delivery systems taking into account the pharmacokinetics and pharmacodynamics of the drug as well as its physical and chemical properties.
Ans → pharmaceutics
Explanation →
Q. An overall reaction in which an electrophile binds to a substrate with the expulsion of another electrophile is known as
Ans → electrophilic substitution
Explanation →
Q. The enzyme defect in acute intermittent porphyria
Ans → Uroporphyrinogen synthase I
Explanation →
Q. The polymers of monosaccharides or their derivatives, held together by glycosidic bonds
Ans → Polysaccharide
Explanation →
Q. A Biologically active substance, which when biodistributed in the body is expected to modify one or more of its functions.
Ans → drug
Explanation →
Q. Name the painless ulcer that develops at the site of infection in primary syphilis
Ans → hard chancre
Explanation →
Q. A a variant of PCR involving the use of fluorescence to allow for the monitoring of the increase in double-stranded template during a PCR reaction as it occurs
Ans → real-time PCR
Explanation →
Q. The high level of energy electrons can achieve as energy is added.
Ans → excited state
Explanation →
Q. Name a stage in the drying of solids, above which the drying rate is linear, at which the drying rate ceases to be linear, until it reaches the equilibrium moisture content.
Ans → critical moisture content
Explanation →
Q. Name the cell envelope structure outside the cell wall in some bacteria that allows bacteria to adhere to surfaces,
Ans → glycocalyx
Explanation →
Q. Antihelminthic drug of the benzimidazole class that binds to helminthic β-tubulin, preventing microtubule formation
Ans → mebendazole
Explanation →
Q. Plasma lipoprotein that is inversely correlated with coronary heart disease is
Ans → HDL
Explanation →