GATE Life Science Mock Test - 5 (Biochemistry & Micro Biology) - GATE Life Sciences MCQ

Instructions: Select the option that most accurately conveys the meaning of the idiom that is highlighted.

He is an honest, straightforward, and genuine individual. He will consistently call a spade a spade.

Mola is a digital taxi service operating in a city, providing three categories of rides – Pool, Mini, and Prime. The table below shows the count of rides taken over the last four months. The platform generates one US dollar for each ride. What percentage of the total revenue generated by Mola during this period is accounted for by Prime rides?

X is a provider of online media. By presenting unlimited and exclusive online content at appealing prices for a loyalty membership, X is essentially compelling its customers to opt for its loyalty membership. If the growth of its loyalty membership continues at the current pace, in the next eight years, a greater number of households will be viewing X than cable television.

Which of the following statements can be deduced from the paragraph above?

Which of the following possesses the greatest magnetic moment?

The depression of freezing point of water (in K) for 0.1 molal solutions of NaCl and Na₂SO₄ are ∆T₁ and ∆T₂, respectively. Assuming the solutions to be ideal, the ratio ∆T₁⁄∆T₂ is _____________ (rounded off to two decimal places).

Which of the following statements is false?

How many unpaired electrons are there in the complex X?

What is the composition of triphosphazene?

The sequence of the initial ionization energies for He, B, N, and O in their respective ground states is correctly represented as

According to molecular orbital theory, which of the following assertions regarding N₂, N₂ , O₂, and O₂ is accurate?

Instructions: The subsequent question presents four options, of which ONLY ONE is accurate.

In the process of decomposing N₂O₅, the graph depicting the logarithm (base 10) of the pressure of N₂O₅ in torr (log ) plotted against time (t) results in a straight line with a slope of – 4.39 × 10^–3 min^–1 and an intercept of 0.27.

Based on the information provided, which of the following statements is NOT correct?

Determine the spin-only magnetic moment for the compound X.

The standard cell potential for the following electrochemical reaction is 0.7 V. What is the standard Gibbs free energy for this cell in kJ mol^-1 (rounded to two decimal places)? (Note: Faraday's constant, F = 96500 C mol^-1)

Liposomes are typically made up of phosphatidylcholine-rich phospholipids and may also include various lipid chains that exhibit surfactant characteristics, such as egg phosphatidylethanolamine. Considering this structure, a liposome is ________.

Instructions: For the Assertion (A) and Reason (R) given below, select the appropriate option.

Assertion (A): Zinc-finger nucleases (ZFNs) function as synthetic restriction enzymes.
Reason (R): Typically, the DNA-binding domains of individual ZFNs consist of between nine and eighteen distinct zinc finger repeats.

The role of RAG recombinase is to facilitate the development of specific immune receptors. This mechanism takes place in

The energy of electrostatic interaction between a positively charged atom A and a negatively charged atom B, which are 3 Å apart in water, is -6 kJ/mol. Given that the relative permittivity of water is 80, what is the electrostatic interaction energy in kJ/mol (rounded to one decimal place) between atoms A and B when in a vacuum?

The cholera toxin leads to severe and frequently lethal diarrhoea by

Which of the following substances serves as a precursor for gluconeogenesis?

The cytokine that is commonly secreted by both TH1 and TH2 cells is

In a PCR reaction with a total volume of 100 μL, which includes two primers each at a concentration of 0.2 μM, a 250 base pair DNA fragment is intended to be amplified. Given that the average molecular weight of a single base pair is 660 Da, if both primers are entirely utilized by the conclusion of the reaction, the total mass of the final PCR product produced is ____ μg (rounded to one decimal place).

Which of the following protozoans creates a web of mucus trails?

Various microbial communities engage in interactions and relationships with one another and with more complex organisms. Typically, these relationships are founded on nutritional needs, where additional benefits can be gained. The specific relationship referred to may be crucial for the survival of one or both partners involved.
Cyanobacteria, which are photosynthetic bacteria that produce oxygen, are recognized for their growth on the surfaces of newly exposed rocks, where the accumulation of their cells leads to the concurrent deposition of organic matter. This process establishes which of the following? (Subtopic: soil microorganisms)

A dual-function enzyme is ___________ .

The term pleomorphic is often used in reference to certain bacteria. This indicates ______.

The organism Vibrio fischeri produces bioluminescent chemicals only upon reaching a specific population density. This phenomenon exemplifies which of the following?

Consider a spherical bacterial cell with a diameter of 2 µm and a spherical eukaryotic cell with a diameter of 20 µm. The ratio of surface area to volume (in µm^-1) for the bacterial cell (rounded to one decimal place) is ______ times greater than that of the eukaryotic cell.