MCQ Bank
Triglycerides have---bonding
- A) Ester linkage
- B) Ether linkage
- C) Peptide linkage
- D) Glycosidic linkage
Peptide bond is linkage between ---- and ---- form proteins
- A) Carbon. Hydrogen
- B) Carbon .nitrogen
- C) Carbon .oxygen
- D) Carbon sulphur
The catalytic unit of RNA polymerases when placed properly during initiation is just over
- A) -1 site
- B) O site
- C) +1 site
- D) - 10 site
Binds the enzyme at nonactive site cause a conformational change prevents enzyme from binding its substrate
- A) competitive initiators
- B) competitive inhibitors
- C) noncompetitive initiators
- D) noncompetitive inhibitors
Which enzyme is used to join together two different types of DNA molecules?
- A) Ligase
- B) Endonuclease
- C) Protease
- D) exonuclease
Mendel did not observe linkage due to..
- A) Crossing over
- B) Independent assortment
- C) Linkage
- D) Synapses
Golgi apparatus manufactures----------------- compound for the plant wall
- A) poly-saccharides
- B) Mono-saccharides
- C) Oligo-saccharides
- D) Di-saccharides
---------vitamin acts as receptor for light and present in eyes.
- A) Vitamin C
- B) Vitamin A
- C) Vitamin D
- D) Vitamin B
Purine has----structure
- A) Double ringed
- B) Single ringed
- C) Branched structure
- D) Linear structure
Amount of free energy released or used in a chemical reaction is dependent on which of the following factors
- A) Enthalpy
- B) Entropy
- C) Absolute temperature
- D) a.bandc
If reporter and quencher are adjacent to each other they -----produce light.
- A) will produce
- B) will not produce
- C) may or may not
- D) small amount of light produced
Which of the following are examples of monosaccharide?
- A) Glucose
- B) Glycogen
- C) Cellulose
- D) Sucrose
The process in which the enolate of an aldehyde or a ketone reacts at the a-carbon with the carbonyl of another molecule to obtain B-hydroxy aldehyde or B-hydroxyl ketone is called as --------
- A) Hydrolysis
- B) Aldol condensation
- C) Decarboxylation
- D) Claisen condensation
Which one of the following is derived by the reaction between a carboxylic acid and an alcohol?
- A) Aldol
- B) Phenol
- C) Ester
- D) Enol
The enzyme --------catalyzes a reversible shift of the phosphoryl group between C-2 and C-3 of glycerate.
- A) Phosphofructokinase-1
- B) Phosphoglycerate mutase
- C) Aldolase
- D) Triose phosphate isomerase
Which one of the following is true regarding elimination reaction?
- A) Causes oxidation-reduction reaction
- B) Causes reduction
- C) Causes no change in oxidation state
- D) Causes oxidation
Dietary deficiency of Niacin the vitamin form of NAD and NADP causes---------
- A) Pellagra
- B) Diabetes
- C) None of given
- D) Alzheimer's disease
The stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as --------bonding.
- A) Peptide
- B) Ionic
- C) Hydrogen
- D) Covalent
Study of energy relationships and energy conversions in biological systems is termed as ,--------
- A) Biophysics
- B) Bioenergetics
- C) Microbiology
- D) Biotechnology
Nucleophiles are capable of
- A) Donating electrons
- B) Donating both electrons and protons
- C) Donating protons
- D) Accepting electrons