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GATE Biotechnology Mock Test - 6 - GATE Biotechnology MCQ


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30 Questions MCQ Test - GATE Biotechnology Mock Test - 6

GATE Biotechnology Mock Test - 6 for GATE Biotechnology 2025 is part of GATE Biotechnology preparation. The GATE Biotechnology Mock Test - 6 questions and answers have been prepared according to the GATE Biotechnology exam syllabus.The GATE Biotechnology Mock Test - 6 MCQs are made for GATE Biotechnology 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for GATE Biotechnology Mock Test - 6 below.
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GATE Biotechnology Mock Test - 6 - Question 1

The demonstrators were apprehensive that the suggested legislation would have a/an ______ impact on the state’s natural reserves.

Detailed Solution for GATE Biotechnology Mock Test - 6 - Question 1

Deleterious (adj.) means having a harmful or adverse effect; destructive, hurtful, noxious.

GATE Biotechnology Mock Test - 6 - Question 2

The Rajiv Gandhi Khel Ratna Award was recently awarded to Mary Kom, a six-time world boxing champion, during a ceremony held at Rashtrapati Bhawan, the official residence of the President, in New Delhi.

GATE Biotechnology Mock Test - 6 - Question 3

A caterpillar begins its journey from its hole and travels along the ground, making a 90° turn to the left or right after each hour. In the first hour, it covers 2 m, then 3 m in the second hour, 4 m in the third hour, and continues this pattern. What is the maximum distance it could be from its hole after seven hours?

Detailed Solution for GATE Biotechnology Mock Test - 6 - Question 3

The caterpillar will be as far away as possible from its hole if, at each turn, it always heads away from the hole.
Hence its maximum distance will occur when it has travelled (2 + 4 + 6 + 8) metres = 20 metres in one direction and (3 + 5 + 7) metres = 15 metres in a perpendicular direction.

Using Pythagoras’ theorem, the maximum distance

GATE Biotechnology Mock Test - 6 - Question 4

When three distinct lines are drawn on a surface, the maximum number of points where two or more lines intersect (known as crossing points) is three. For four distinct lines, the highest number of crossing points is six. What is the greatest number of crossing points that can be formed with seven distinct lines?

Detailed Solution for GATE Biotechnology Mock Test - 6 - Question 4

If one line is drawn, there are no crossings. If a line is added to the picture, there is (at most) one crossing. If a
third line is drawn on the picture, 2 crossings are added. If a fourth line is drawn, 3 more crossings are added.
And so on.
Total number of crossings = 1 + 2 + 3 + 4 + 5 + 6 = 21.

GATE Biotechnology Mock Test - 6 - Question 5

The frequency chart displayed above illustrates the distribution of marks achieved by a group of students in a particular examination. Based on the information provided, which of the following statements is CORRECT?

GATE Biotechnology Mock Test - 6 - Question 6

In the square grid displayed on the left, an individual located at position P2 must navigate to position P5.
The only allowed movement consists of "two moves in one direction followed by a single move in a perpendicular direction." The allowed directions for movement are illustrated with dotted arrows on the right.
For instance, a person at a specific position Y can only move to the positions indicated as X on the right.
Without stepping into any of the shaded squares at the conclusion of each move, what is the minimum number of steps required to travel from P2 to P5?

GATE Biotechnology Mock Test - 6 - Question 7

Two distinct numbers are randomly chosen from the set {–3, –1, 0, 2, 4}, and their product is calculated. What is the likelihood that the product of the selected numbers equals 0?

Detailed Solution for GATE Biotechnology Mock Test - 6 - Question 7

There are ten possible pairs of numbers that can be chosen: –3 and –1, –3 and 0, –3 and 2, –3 and 4, –1 and 0,
–1 and 2, –1 and 4, 0 and 2, 0 and 4, 2 and 4. Each pair is equally likely to be chosen.
Pairs that include 0 (4 pairs) have a product of 0; pairs that do not include 0 (6 of them) do not have a product of 0.
Therefore, the probability that a randomly chosen pair has a product of 0 is 4/10 or 2/5.

GATE Biotechnology Mock Test - 6 - Question 8

This year, a grandmother, her daughter, and her granddaughter realized that their ages add up to 100 years. Each of their ages is represented as a power of 2. What is the age of the granddaughter?

Detailed Solution for GATE Biotechnology Mock Test - 6 - Question 8

The powers of 2 under 100 are 1, 2, 4, 8, 16, 32 and 64.
The sum of the first six of these is 63.
If we have a sum of three such ages adding to 100, then one of them must be 64 (the grandmother).
This leaves 36 as the sum of the ages of the daughter and the granddaughter.
The sum of the first five powers of 2 is 31.
If we have a sum of two such ages adding to 36, then one of them must be 32 (the daughter).
This leaves 4 as the age of the granddaughter.

GATE Biotechnology Mock Test - 6 - Question 9

The identification of the target cell by a CD8 cytotoxic T cell is

Detailed Solution for GATE Biotechnology Mock Test - 6 - Question 9

Tc cells are CD8+ and their target cell recognition is MHC I restricted.

GATE Biotechnology Mock Test - 6 - Question 10

Below are the various types of microscopy listed in column I along with their potential applications in column II.

GATE Biotechnology Mock Test - 6 - Question 11

A container holds 2 washers, 3 nuts, and 4 bolts. Items are selected randomly from the container one at a time without replacement. What is the probability of drawing 2 washers first, followed by 3 nuts, and then the 4 bolts?

Detailed Solution for GATE Biotechnology Mock Test - 6 - Question 11

The probability of drawing 2 washers first is (2/9) * (1/8) = 1/36.

Then, the probability of drawing 3 nuts is (3/7) * (2/6) * (1/5) = 1/35.

Finally, the probability of drawing the remaining 4 bolts is 1.

The combined probability is (1/36) * (1/35) * 1 = 1/1260.

Therefore, the correct answer is option 3, 1/1260.

GATE Biotechnology Mock Test - 6 - Question 12

The following set of simultaneous equations
x y z = 3
x 2y 3z = 4
x 4y kz = 6
will fail to yield a unique solution when k is equal to

Detailed Solution for GATE Biotechnology Mock Test - 6 - Question 12

The augmented matrix for given system is 
Using Gauss elimination, we reduce this to an upper triangular matrix to investigate its rank.

Now if k = 7
rank (A) = rank (A|B) = 3
Since, unique solution
If k = 7, rank (A) = rank (A | B) = 2
which is less than number of variables
when k = 7, unique solution is not possible and only infinite solution is possible.

GATE Biotechnology Mock Test - 6 - Question 13

Consider the following system of equations:
x1 2x2 x3 4x4 = 2
3x1 6x2 3x3 12x4 = 6
Which of the subsequent statements is correct?

Detailed Solution for GATE Biotechnology Mock Test - 6 - Question 13

x1 + 2x2 + x3 + 4x4 = 2
3x1 + 6x2 + 3x3 + 12x4 = 6
The augmented matrix is 
Performing gauss-elimination on this we get

rank (A) = rank (A | B) = 1
So, system is consistent.
Since, system’s rank = 1 is less than the number of variables, only infinite (multiple) non trivial solution exists.

GATE Biotechnology Mock Test - 6 - Question 14

In Drosophila, how is dosage compensation accomplished?

GATE Biotechnology Mock Test - 6 - Question 15

The type of relationship that entails the sharing of nutrients between two distinct species for their joint development is referred to as ________.

GATE Biotechnology Mock Test - 6 - Question 16

Mendel's 'law of segregation' pertains to the separation of ________ during the formation of gametes.

*Answer can only contain numeric values
GATE Biotechnology Mock Test - 6 - Question 17

A microorganism is cultivated in a batch culture utilizing glucose as its carbon source. The observed growth yield is 0.5  The initial concentrations of biomass and substrate are 2 g L-1 and 200 g L-1, respectively. Assuming there is no endogenous metabolism, what is the maximum biomass concentration that can be attained, measured in _________________ g L-1


*Answer can only contain numeric values
GATE Biotechnology Mock Test - 6 - Question 18

The extent of reduction for lactic acid (C3H6O3) is ________________.


GATE Biotechnology Mock Test - 6 - Question 19

Examine the subsequent statements concerning microscopic techniques:
P. Bright Field Microscopy is most effective for observing histopathological slides that have been stained with H & E.
Q. The low magnification image of TEM can be viewed with the naked eye on a phosphor screen.
R. Confocal microscopy utilizes a nipkow disc for the raster scanning of images.
S. Phase contrast microscopy is synonymous with Differential interference contrast microscopy.
Which of the statements listed above are accurate?

GATE Biotechnology Mock Test - 6 - Question 20

A plug flow reactor is defined by

GATE Biotechnology Mock Test - 6 - Question 21

Which materials are utilized for ultrafiltration in applications that involve high temperatures?

GATE Biotechnology Mock Test - 6 - Question 22

The method of maximum parsimony is employed to create a phylogenetic tree from a collection of sequences. Which of the following statements regarding this method is TRUE?

GATE Biotechnology Mock Test - 6 - Question 23

What is the term that describes the ratio of momentum diffusivity to thermal diffusivity?

Detailed Solution for GATE Biotechnology Mock Test - 6 - Question 23

The Prandtl number (Pr) is a dimensionless number, which is defined as the ratio of momentum diffusivity to thermal diffusivity. It is given as: 
where, v : momentum diffusivity (kinematic viscosity), v = μ/ρ (m2/s)
α : thermal diffusivity, α = k/(cp ρ), (m2/s)
μ : dynamic viscosity, (Pa s = N s/m2)
k : thermal conductivity, (W/m-K)
cp : specific heat, (J/kg-K)
ρ : density, (kg/m3).

GATE Biotechnology Mock Test - 6 - Question 24

Which of the following sequences is most likely to represent a site recognized by a restriction enzyme?

Detailed Solution for GATE Biotechnology Mock Test - 6 - Question 24

Restriction sites are usually palindromic in nature. Among the given options only ‘TGTCGACA’ shows palindromic nature so it is most likely to be a restriction site.

GATE Biotechnology Mock Test - 6 - Question 25

Pair the industrial enzyme listed in Column I with its corresponding application in Column II.

GATE Biotechnology Mock Test - 6 - Question 26

Pair each enzyme listed in Column I with its appropriate function in Column II.

*Multiple options can be correct
GATE Biotechnology Mock Test - 6 - Question 27

Which of the following synthetic auxins do NOT occur naturally?

*Answer can only contain numeric values
GATE Biotechnology Mock Test - 6 - Question 28

A fed-batch fermentation process is being conducted at a quasi-steady state concerning the concentrations of substrate and biomass. At the 2-hour mark, the total culture volume is 500 L, with a continuous sterile glucose feed entering at a rate of 50 L h-1. The kinetic parameters for the culture are µm = 0.2 h-1 and KS = 0.1 g L-1.
The concentration of substrate present in the reactor will be ________ g L-1 (rounded to one decimal place).


*Answer can only contain numeric values
GATE Biotechnology Mock Test - 6 - Question 29

Consider the process of scaling up fungal fermentation from a 20 L model-type reactor to a 20,000 L prototype stirred tank reactor. Both the model-type and the prototype maintain the same aspect ratio during the scaling process. The impeller speed in the model-type reactor is set at 500 rpm, and the criterion for scaling up is to keep shear constant.
The impeller speed in the prototype reactor will be ________ rpm (Provide your answer as an integer).


*Answer can only contain numeric values
GATE Biotechnology Mock Test - 6 - Question 30

The set of linear equations
cx y = 5
3x 3y = 6
will have no solution when c is equal to ____.


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