Q.2 𝑥 ∶ 𝑦 ∶ 𝑧= 1/2:1/3:1/4. What is the value of x+z-y/y ? (A) 0.75(B) 1.25(C) 2.25(D) 3.25 Problem Overview The ratio x:y:z = 1/2 : 1/3 : 1/4 […]
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Couldn’t Help Laughing Grammar Rule
Q.1 The movie was funny and I _________.(A) could help laughing(B) couldn’t help laughed(C) couldn’t help laughing(D) could helped laughed Correct Answer: (C) couldn’t help laughing The idiom “couldn’t help” […]
Length of Double Helical DNA 13.6 km
Q103 The length of a double helical DNA molecule is 13.6 km. If the DNA double helix weighs 1 × 10-18 g per 1000 nucleotide pairs and 3.4 Å per […]
Drosophila Three Point Cross
Q102: Drosophila Three-Point Cross Wild-type Drosophila females having three linked genes (ABC) crossed with triple recessive mutant males (abc). The F1 females (ABc) crossed with abc males. The cross resulted […]
Colchicine Mechanism – Microtubule Disruption and Mitotic Arrest
Q.101 Which of the following statements is/are TRUE for Colchicine?(A) It binds to tubulin molecule and disrupts the assembly/polymerization ofmicrotubule.(B) It inhibits crossover of chromosomes during meiosis.(C) It inhibits chromosome […]
DNA Replication in Eukaryotes
Q.100 Among the following statements, which is/are TRUE regarding the replication ofDNA?(A) Replication is bidirectional and conservative in nature.(B) Replication in eukaryotes takes place at multiple Ori sites simultaneously.(C) Both […]
Techniques for Determining the Three-Dimensional Structure of Proteins
Q.99 Which of the following techniques is/are used for determining thethree–dimensional structure of proteins?(A) Cryo–electron Microscopy(B) Circular Dichroism(C) Nuclear Magnetic Resonance Spectroscopy(D) X–ray Diffraction Cryo-electron Microscopy, Nuclear Magnetic Resonance Spectroscopy, […]
Excess Glucose Prevents Lac Operon Induction in E. coli
Q.98 The presence of excess glucose has been known to prevent the induction oflac operon as well as other operon controlling enzymes involved in carbohydratemetabolism in E. coli. Which of […]
Matching Cofactors to Enzymes
Q97. Match the standard stated cofactors in Column I with their respective enzymes in Column II Column I Column II P. Cu2+ (i) Nitratenase Q. Se (ii) Cytochrome oxidase R. […]
Match Immunological Statements Column I Column II
Q.96 Match the immunological statements in Column I with the appropriate descriptions from Column II Column I Column II P. Active acquired immunity (i) Complement proteins and interferons Q. First […]


