GATE Biotechnology Mock Test - 1 - GATE Biotechnology MCQ

The length, breadth and height of a room are in the ratio 3 : 2 : 1. If the breadth and height are halved while the length is doubled, then the total area of the four walls of the room will

Deepika sells her goods 10% cheaper than those of Nidhi and 10% costlier than those of Gurpreet. A customer purchases goods from Nidhi worth Rs. 100. How much would he have saved if he bought the same goods from Gurpreet?

Which one of the following is required for the development of B-cells in the bone marrow?

In hybridoma technology, which one of the following enzymes is absent in the myeloma cells that are used for monoclonal antibody production?

The process of addition of selected bacteria to an area for breakdown of contaminants is known as

Which one of the following programs is used for finding distantly related (or remote) protein homologs?

The phospholipid which is present in the plasma membrane of human cells but not in those of E. coli is

For the function f(x) = x²e^-x, the maximum occurs when x is equal to ____.(Answer up to the nearest integer)

The distance between the two points of intersection of x ² +y= 7 and x +y= 7 (rounded off to two decimal places) is ____________.

If 7^3x = 216 , the value of 7^{− x} (rounded off to three decimal places) is  ____________.

The point of maxima of the function sin x + 2 cos x over the interval [0, x] is

If the region of convergence of x₁ [n] + x₂ [n] is  then the region of convergence of x₁ [n] - x₂ [n] includes

A fair coin is tossed n times and let X denote the number of heads obtained. If P(X = 4), P(X = 5) and P(X = 6) are in A.P., then n is equal to

Determine the number of bonds that can be hydrolysed by the use of trypsin and chymotrypsin in the following oligopeptide sequence:

Tyr-Gly-Gly-Phe-Met-Lys-Lys-Tyr

_{Match the cofactors in Group I to the corresponding enzymes in Group II.}

A bacterial culture contains 32 × 10⁶ cells after 2.5 hours of exponential growth. What was the initial bacterial count if the doubling time of the bacteria is 30 minutes?

Match the immune tolerance mechanisms in Group I with their respective outcomes in Group II.

The event(s) that lead(s) to inactivation of tumor suppressor genes in cancer cells is(are)

Which of the following vector(s) is(are) used to clone a DNA fragment of size 220 kb?

What would be the recombination frequency of the genes (A and B)?
(Give your answer upto 1 decimal place.)

What is the value of the rate constant kd for the process?
(Give your answer upto 3 decimal places.)

A diploid species has 48 chromosomes during the M phase of the cell cycle. How many chromosomes would it have during the G1 phase?

In a population study, 1000 individuals are chosen at random and their genotypes for a trait are determined. The genotype distribution was found to be as follows:
AA = 800
Aa = 185
aa = 15

Determine the frequency of occurrence of the allele "a" in the population.
(Give your answer upto 3 decimal places.)

Aqueous two-phase extraction is used to recover α-amylase from a solution. A polypropylene glycol-dextran mixture is added and the solution separates into upper and lower phases. The partition coefficient is 4.0 and the ratio of upper to lower phase volume is 5.0. The enzyme recovery or yield (in percentage, rounded off to the nearest integer) is ___________.

If 1000 bp of a double-helical DNA weighs 1x10^-18 gm and distance between two bp is 0.34 nm , the total amount of DNA (in mg, rounded off to one decimal place) required to stretch from Earth to Moon (assuming the distance between Earth and Moon to be 3,74,000 km) is ___________.

The values of the consistency index ‘ K ’ and the flow behavior index ‘ n ’ of a dilatant fluid are 0.415 (in CGS units) and 1.23, respectively. The value of the apparent viscosity (in g. cm ⁻¹. s⁻¹ ) of this fluid at a shear rate of 60 s ⁻¹ (rounded off to the nearest integer) is ___________.

A protein has three identical sites arranged at the vertices of an equilateral triangle. If one site is filled with a dye (donor), the measured quantum yield (Ø_D) is 0.5. Filling one site with a donor dye and a second site with an acceptor dye results in Ø_D of 0.25. The measured Ø_D of one site filled with donor and the other two sites filled with acceptor dye (rounded off to three decimal places) is ___________.