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IIT JAM Biotechnology Mock Test 7 - Biotechnology Engineering (BT) MCQ


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30 Questions MCQ Test Mock Test Series of IIT JAM Biotechnology 2025 - IIT JAM Biotechnology Mock Test 7

IIT JAM Biotechnology Mock Test 7 for Biotechnology Engineering (BT) 2024 is part of Mock Test Series of IIT JAM Biotechnology 2025 preparation. The IIT JAM Biotechnology Mock Test 7 questions and answers have been prepared according to the Biotechnology Engineering (BT) exam syllabus.The IIT JAM Biotechnology Mock Test 7 MCQs are made for Biotechnology Engineering (BT) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for IIT JAM Biotechnology Mock Test 7 below.
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IIT JAM Biotechnology Mock Test 7 - Question 1

A particle is in equilibrium under the action of three forces P, Q and R. If the angle between P and Q is  120º and that between Q and R is 135º, then the ratio of their magnitudes P : Q : R is

Detailed Solution for IIT JAM Biotechnology Mock Test 7 - Question 1

System is in equilibrium when net force on system = 0
Equating X components

IIT JAM Biotechnology Mock Test 7 - Question 2

A man can throw a stone to a maximum distance of 50 m. The time in seconds for which the stone remains in the air is

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IIT JAM Biotechnology Mock Test 7 - Question 3

The sides of a triangle are 3, 4 and 5 meters in length. The area of the triangle in m2 is

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IIT JAM Biotechnology Mock Test 7 - Question 4

The sum of all interior angles of a regular hexagon is

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IIT JAM Biotechnology Mock Test 7 - Question 5

Choose the correct set of amino acids that contains most acidic and most basic amino acids pair

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Based on the ionization constants, the most acidic amino acid is aspartate and most basic amino acid is arginine

IIT JAM Biotechnology Mock Test 7 - Question 6

Collagen is most important for integrity of exoskeleton as it confers rigidity to the extracellular matrix. It’s unique composition shows repeats of Gly-Pro-Hydroxyproline. If a mutation occurs in the gene leading to substitution of glycine by alanine, the severe lethal disorder that arises is called

Detailed Solution for IIT JAM Biotechnology Mock Test 7 - Question 6

Collagen mutations result in osteogenesis imperfecta. Collagen is composed of three polypeptide chains, which wind around one another into a triple helix stabilised by covalent cross-linkages. Collagen is composed of regular arrangement of Gly-Pro-X, where X can be any amino acid. Glycine side chain is the only one that is small enough to fit into the centre of the triple helix. The angle of the proline residue enables the polypeptide chains to fold into the triple helical structure. People with osteogenesis imperfecta have bones that fracture easily, often from mild trauma.

IIT JAM Biotechnology Mock Test 7 - Question 7

Among the following, life likely originated earliest in :

Detailed Solution for IIT JAM Biotechnology Mock Test 7 - Question 7

Earliest life on earth originated in oceans but within oceans, life likely originated in and around deep hydrothermal vents. It is because the temperature and catalytic properties of rock materials around vents helped in formation of early self - replicating molecules.

IIT JAM Biotechnology Mock Test 7 - Question 8

The restriction endonuclease is having a defence mechanism in bacterial system against foreign DNA. But how is it able to protect its own DNA?

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The bacterial DNA is methylated immediately after replication and this methylated DNA is not a substrate of restriction endonucleases and hence is spared from digestion.

IIT JAM Biotechnology Mock Test 7 - Question 9

Name the vector that can maintain the largest fragment of foreign DNA.

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YAC or yeast artificial chromosome has highest capacity for taking inserts.

IIT JAM Biotechnology Mock Test 7 - Question 10

Which among following is NOT a protozoal disease

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Chickenguniya is caused by a virus while all other diseases are caused by protozoal pathogens.

IIT JAM Biotechnology Mock Test 7 - Question 11

The dimensional formula of surface tension in terms of the dimensions of mass (M), length (L) and time (T) is

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IIT JAM Biotechnology Mock Test 7 - Question 12

A body moves from A to B in a straight line with a uniform speed of 60 m/s and returns to B with a uniform speed of 40 m/s. The average speed of the body for the complete motion is

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IIT JAM Biotechnology Mock Test 7 - Question 13

Two particles have their masses and the kinetic energies both in the ratio 1 : 2. Then the ratio of their de Broglie wavelengths will be

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IIT JAM Biotechnology Mock Test 7 - Question 14

A particle of mass m tied to a string is made to move in circular path of radius R in a vertical plane. Neglect the air friction and mass of the string. Total work done on the particle when the particle moves from P to Q is

Detailed Solution for IIT JAM Biotechnology Mock Test 7 - Question 14

Here two forces are acting-one is tension and other is gravitational force. Only gravitational force contributes in net work done.



= 3/2 mgR

IIT JAM Biotechnology Mock Test 7 - Question 15

Ram’s mother is four times older than the age of Ram. After 5 years, sum of the age of both is 50 years. The present age of mother is

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IIT JAM Biotechnology Mock Test 7 - Question 16

Length of each side of regular hexagon is 1 cm. The area of the hexagon in mis

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Regular hexagon makes 6 equilateral triangles

IIT JAM Biotechnology Mock Test 7 - Question 17

The graph shown below represents a function

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The graph represents a function f(x) = x i.e. y = x

IIT JAM Biotechnology Mock Test 7 - Question 18

The infinite series  represents a number which is

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IIT JAM Biotechnology Mock Test 7 - Question 19

Which of the following is a tripeptide

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Carnosine and aspartame are dipeptides. Carnosine is used as antioxidant in muscle cell and aspartame is an artificial sweetner. Glutathione is a tripeptide and acts as antioxidant and universal reductant. Collagen is a polymer.

IIT JAM Biotechnology Mock Test 7 - Question 20

Amino acids residue in a peptide that is most likely to behave as both acid and base at the physiological pH is

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The ability to act as both acid and base at the physiological pH depends upon pKR of the side chain of amino acid. pKR of histidine is close to physiological pH. Thus it is most likely to act as acid as well as base or proton donor as well as proton acceptor.

IIT JAM Biotechnology Mock Test 7 - Question 21

Calculate the pH of a mixture of 0.10M acetic acid and 0.20M sodium acetate. The pKa of acetic acid is 4.76.

Detailed Solution for IIT JAM Biotechnology Mock Test 7 - Question 21

pH = pKa + log [acetate]/[acetic acid] = 4.76 + log (0.2/0.1)
= 4.76 + 0.30
= 5.1.

IIT JAM Biotechnology Mock Test 7 - Question 22

Assertion A: pH of a buffer solution does not change on dilution.
Reason R: On dilution the ratio of concentration of salt and acid (or base) remains unchanged.

Detailed Solution for IIT JAM Biotechnology Mock Test 7 - Question 22

On dilution, pH of buffer solution remains unchanged because the ratio of concentration of salt and acid (or base) remains unchanged.

IIT JAM Biotechnology Mock Test 7 - Question 23

Among the following events in the history of life
a. Prokaryotic cell
b. Eukaryotic cell
c. Natural selection
d. Organic molecules
e. Self-replicating molecules
Which of the following is correct chronological order?

Detailed Solution for IIT JAM Biotechnology Mock Test 7 - Question 23

During evolution of life correct chronological order is
a. Organic molecules
b. Self-replicating molecules
c. Natural selection
d. Prokaryotic cell
e. Eukaryotic cell

IIT JAM Biotechnology Mock Test 7 - Question 24

During early origin of earth O2 was absent in environment. Later on O2 increased & reached to present level. The main source of O2 was :

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Each and every molecule of O2 in current atomsphere of earth comes from the splitting of H2O due to light radiation and reactions. This process is also called as oxygenic photosynthesis.

IIT JAM Biotechnology Mock Test 7 - Question 25

Complex eukaryotic cells may have evolved from simpler prokaryotic cells because complexity of organization increases

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Complex eukaryotic cells evolved as efficient pathways of aerobic metabolism developed. The efficiency was with respect to energy utilization so that a limited amount of energy can be used for increasingly large number of tasks of body of complex multicellular eukaryotic life.

IIT JAM Biotechnology Mock Test 7 - Question 26

Antibody-producing hybridoma cells are generated by the fusion of a

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Hybridoma technology is a method of producing large number of identical antibodies, called monoclonal antibodies. The process starts with injecting a mouse with an antigen, this provokes an immune response. The B-cells produce antibodies that bind to the injected antigen. These B-cells are harvested from the mouse and fused with immortal B-cell (a myeloma) to produce a hybrid cell line called a hybridoma.

IIT JAM Biotechnology Mock Test 7 - Question 27

Choose the correct statement regarding the processing and presentation of protein antigens.

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MHC class II molecules bind to peptides derived from the proteins degraded in the endocytic pathway. MHC class I molecules bind peptides generated mainly from the degradation of cytosolic proteins by the proteasome. Transporter associated with antigen processing (TAP) protein complex belongs to the ATP-binding-cassette transporter family. It delivers cytosolic peptides into the endoplasmic reticulum (ER), where they bind to nascent MHC class I molecules.

IIT JAM Biotechnology Mock Test 7 - Question 28

Agrobacterium tumefaciens is a

Detailed Solution for IIT JAM Biotechnology Mock Test 7 - Question 28

Agrobacterium tumefaciens is a gram negative bacteria and mostly affects dicot plants but can rarely affect monocot plants.

IIT JAM Biotechnology Mock Test 7 - Question 29

In an in-vitro DNA synthesizing mixture, what would result when the mixture contain the four ddNTPs and no dNTPs?

Detailed Solution for IIT JAM Biotechnology Mock Test 7 - Question 29

As dideoxynucleotides lead to the chain termination, so immediately after binding of ddNTPs no other nucleotide would bind. Hence, all products would be one nucleotide longer than the primer.

IIT JAM Biotechnology Mock Test 7 - Question 30

The topological features of circular DNA may not affect which of the following?

Detailed Solution for IIT JAM Biotechnology Mock Test 7 - Question 30

The topological features of DNA can affect all except sedimentation. However, if ethidium bromide (EtBr) is added to different topological forms, it may lead to a change.

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