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Download JNU 2019 Biotechnology Bit Question Paper

Download JNU 2019 Biotechnology Bit Previous Question Paper || Jawaharlal Nehru University (JNU) Last 10 Years Question Paper

This post was last modified on 21 January 2021

JNU Last 10 Years 2011-2021 Previous Question Papers with Answers


Question Paper Name: BIOTECHNOLOGY BIT 30th May 2019 Shift 1 Set1

Subject Name: BIOTECHNOLOGY BIT

Creation Date: 2019-05-30 13:50:42

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Duration: 180

Total Marks: 100

Display Marks: Yes

Share Answer Key With Delivery Engine: Yes

Actual Answer Key: Yes

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BIOTECHNOLOGY BIT

Group Number: 1

Group Id: 128206188

Group Maximum Duration: 0

Group Minimum Duration: 120

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Revisit allowed for view?: No

Revisit allowed for edit?: No

Break time: 0

Group Marks: 100

PART A

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Section Id: 128206115

Section Number: 1

Section type: Online

Mandatory or Optional: Mandatory

Number of Questions: 30

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Number of Questions to be attempted: 30

Section Marks: 30

Display Number Panel: Yes

Group All Questions: No

Sub-Section Number: 1

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Sub-Section Id: 128206510

Question Shuffling Allowed: Yes

Question Number: 1 Question Id: 12820611016 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

Which of the following is true about the linear velocity of Earth around the sun? (For northern hemisphere).

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(a) Larger in summer, smaller in winter

(b) Larger in winter, smaller in summer

(c) Equal across the whole year

(d) Equal across the whole year, except in winter and summer solstices

Options:

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12820643527. A

12820643528. B

12820643529. C

12820643530. D

Question Number: 2 Question Id: 12820611017 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

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Correct Marks: 1 Wrong Marks: 0

Match the following:

Measurements Time intervals (in seconds)

(A) Lifetime of the proton (i) 1 x 103

(B) Age of the Universe (ii) 3 x 1040

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(C) Time for sound to travel 0.35 m (iii) 1 x 10-9

(D) Time for light to travel 0.3 m (iv) 5 x 1017

(a) (A)-(iii), (B)-(i), (C)-(iv), (D)-(ii)

(b) (A)-(i), (B)-(iii), (C)-(ii), (D)-(iv)

(c) (A)-(ii), (B)-(iv), (C)-(i), (D)-(iii)

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(d) (A)-(iv), (B)-(ii), (C)-(iii), (D)-(i)

Options:

12820643531. A

12820643532. B

12820643533. C

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12820643534. D

Question Number: 3 Question Id: 12820611018 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

A pumpkin and watermelon (2 kg) are lying on the floor. Considering the position of pumpkin as the origin of, watermelon is at (2.0, 1.0) m. At t=0, two forces Fp = (3.0î + 4.0j) and Fw = (-4.0î – 3.0j) start acting on pumpkin and watermelon respectively. With respect to the position at t=0s, what is the displacement of the centre of the mass of pumpkin-watermelon system at time t = 3.0 s (in unit-vector notation).

(a) (1.5 m)î - (1.5 m)j

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(b) (-3.0 m)î + (3.0 m)j

(c) (3.0 m)î - (3.0 m)j

(d) (-1.5 m)î + (1.5 m)j

Options:

12820643535. A

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12820643536. B

12820643537. C

12820643538. D

Question Number: 4 Question Id: 12820611019 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

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A magnetic field around the chest (that is generated due to small currents in the heart) of a person is measured to be 4 µ Gauss. Assuming the entire current is generated due to a long straight wire inside the heart and the surface of the chest to be at a distance of 4 cm from that hypothetical wire, calculate the heart current.

0 = 4p x 10-7 T.m/A, 1 Gauss = 10-4 T]

(a) 80 µA

(b) 40 µA

(c) 125.6 µA

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(d) 62.8 µA

Options:

12820643539. A

12820643540. B

12820643541. C

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12820643542. D

Question Number: 5 Question Id: 12820611020 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

Considering the fact that the eardrum membrane has to vibrate with the same frequency as of the incident sound wave, if the incident sound wave has a frequency of 20 kHz, what will be the corresponding angular frequency of the vibrating eardrum?

(a) 1.26 x 105 radian/s

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(b) 2.52 x 105 radian/s

(c) 3.96 x 105 radian/s

(d) 1.97 x 105 radian/s

Options:

12820643543. A

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12820643544. B

12820643545. C

12820643546. D

Question Number: 6 Question Id: 12820611021 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

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A researcher intends to study the structure of a virus using a microscope. Considering the fact that a wave having less energy will cause less damage to the virus under investigation, to study the structure of a virus of size 50 nm, the researcher should use which of the following?

[Mass of electron: 9.11x10-31 kg, h = 6.63 x 10-34 J.s, hc = 1.24 x 10-6 eV.m]

(a) Electrons of 5 nm wavelength

(b) Electrons of 10 nm wavelength

(c) Electro-magnetic waves of 10 nm wavelength

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(d) Electro-magnetic waves of 5 nm wavelength

Options:

12820643547. A

12820643548. B

12820643549. C

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12820643550. D

Question Number: 7 Question Id: 12820611022 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

The growth of a population of mycobacterium is being observed under ideal laboratory conditions (i.e. their population is increasing exponentially). It is found that this population consists of 1,000 bacteria at the end of 2 hours and 8,000 bacteria at the end of 5 hours. Calculate the number of bacteria present in the population at the beginning of this experiment.

(a) 125

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(b) 250

(c) 500

(d) 750

Options:

12820643551. A

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12820643552. B

12820643553. C

12820643554. D

Question Number: 8 Question Id: 12820611023 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

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For a reliable detection of a cancerous tumor, it should consist of approximately 1012 cells. If one cell becomes cancerous on a particular day and the doubling time of the cell is 4 days, after how many days this tumor may be detected?

(a) 320

(b) 80

(c) 160

(d) 40

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Options:

12820643555. A

12820643556. B

12820643557. C

12820643558. D

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Question Number: 9 Question Id: 12820611024 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

Rice is boiled in a pressure cooker. If it gets cooled from 95 °C to 85 °C in 1 minute time, in how much time will it cool from 73 °C to 67 °C? [Consider the room temperature to be 30 °C]

(a) 54 sec

(b) 42 sec

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(c) 30 sec

(d) 10 sec

Options:

12820643559. A

12820643560. B

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12820643561. C

12820643562. D

Question Number: 10 Question Id: 12820611025 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

If the hydroxyl ion (OH-) concentration in a dilute aqueous solution is 10-6 gm ion/litre, the pH of the solution will be

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(a) 5.0

(b) 6.0

(c) 7.0

(d) 8.0

Options:

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12820643563. A

12820643564. B

12820643565. C

12820643566. D

Question Number: 11 Question Id: 12820611026 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

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Correct Marks: 1 Wrong Marks: 0

How many optical isomers does isoleucine have?

(a) 2

(b) 4

(c) 8

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(d) 16

Options:

12820643567. A

12820643568. B

12820643569. C

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12820643570. D

Question Number: 12 Question Id: 12820611027 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

In the following reaction, reaction I is... and reaction II is...

(Image of chemical reaction)

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(a) oxidation, reduction

(b) oxidation, oxidation

(c) reduction, reduction

(d) reduction, oxidation

Options:

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12820643571. A

12820643572. B

12820643573. C

12820643574. D

Question Number: 13 Question Id: 12820611028 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

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Correct Marks: 1 Wrong Marks: 0

An aqueous solution of sodium chloride shall boil at

(a) 99.9 °C

(b) > 100 °C

(c) < 100 °C

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(d) 100 °C

Options:

12820643575. A

12820643576. B

12820643577. C

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12820643578. D

Question Number: 14 Question Id: 12820611029 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

Which of the following statement is true for alcohols

(a) It is a weak Brønsted base and weak Brønsted acid

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(b) It is a strong Brønsted base but a weak Brønsted acid

(c) It is a weak Brønsted base but a strong Brønsted acid

(d) It is a strong Brønsted base and strong Brønsted acid

Options:

12820643579. A

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12820643580. B

12820643581. C

12820643582. D

Question Number: 15 Question Id: 12820611030 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

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When an electron withdrawing group (EWG) is in the para-position of phenol, the phenol becomes more acidic. This is because

(a) the EWG destabilizes phenoxide through resonance effect

(b) the EWG stabilizes phenoxide through resonance effect

(c) the EWG stabilizes phenoxide through inductive effect only

(d) the EWG stabilizes phenoxide through delocalization and through inductive effect

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Options:

12820643583. A

12820643584. B

12820643585. C

12820643586. D

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Question Number: 16 Question Id: 12820611031 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

Arrange the following compounds according to decreasing order of basic strength

(Image of chemical structures)

(a) II > I > III > IV

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(b) I > II > III > IV

(c) III > I > II > IV

(d) III > II > I > IV

Options:

12820643587. A

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12820643588. B

12820643589. C

12820643590. D

Question Number: 17 Question Id: 12820611032 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

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Arrange the following intermediates according to increasing order of stability

(Image of chemical structures)

(a) II < III < I < IV

(b) III < I < II < IV

(c) III < II < I < IV

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(d) II < I < III < IV

Options:

12820643591. A

12820643592. B

12820643593. C

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12820643594. D

Question Number: 18 Question Id: 12820611033 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

In the following transformation the role of H2SO4 is

(Image of chemical reaction)

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(a) To remove water

(b) To generate nitronium ion (NO2+)

(c) To oxidise benzene

(d) To protonate benzene

Options:

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12820643595. A

12820643596. B

12820643597. C

12820643598. D

Question Number: 19 Question Id: 12820611034 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

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Correct Marks: 1 Wrong Marks: 0

At 3/5 of his usual pace, a man reaches his office 30 minutes late. Find his usual time to reach office.

(a) 30 minutes

(b) 45 minutes

(c) 60 minutes

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(d) 90 minutes

Options:

12820643599. A

12820643600. B

12820643601. C

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12820643602. D

Question Number: 20 Question Id: 12820611035 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

A 25 m long ladder is placed against a vertical wall inside a room such that the foot of the ladder is 7 m from the foot of the wall. If the top of the ladder slides down 4 m downwards, then the foot of the ladder will slide by

(a) 8 m

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(b) 3 m

(c) 15 m

(d) 16 m

Options:

12820643603. A

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12820643604. B

12820643605. C

12820643606. D

Question Number: 21 Question Id: 12820611036 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

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In a cricket tournament, there were 78 matches played. Every two teams played one match with each other. The number of teams that participated in the tournament were

(a) 13

(b) 15

(c) 17

(d) 19

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Options:

12820643607. A

12820643608. B

12820643609. C

12820643610. D

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Question Number: 22 Question Id: 12820611037 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

If a/a+x + b/b+x = 1, then what are the values of x:

a + b + x

(a) x = -a, -b

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(b) x = (a + b), (a - b)

(c) x = -(a + b), (a - b)

(d) x = a, b

Options:

12820643611. A

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12820643612. B

12820643613. C

12820643614. D

Question Number: 23 Question Id: 12820611038 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

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What is the area bounded by the curve y = cos x between x = -p/2 to x = 3p/2?

(a) 1

(b) 2

(c) 3

(d) 4

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Options:

12820643615. A

12820643616. B

12820643617. C

12820643618. D

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Question Number: 24 Question Id: 12820611039 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

The maximum value of 3sinx + 4cosx is

(a) -5

(b) 5.5

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(c) 3

(d) 5

Options:

12820643619. A

12820643620. B

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12820643621. C

12820643622. D

Question Number: 25 Question Id: 12820611040 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

The glucose that is filtered through the glomerulus undergoes reabsorption in the

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(a) Distal tubule

(b) Collecting duct

(c) Proximal tubule

(d) Ascending limb of the loop of Henle

Options:

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12820643623. A

12820643624. B

12820643625. C

12820643626. D

Question Number: 26 Question Id: 12820611041 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

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Correct Marks: 1 Wrong Marks: 0

The phylum arthropoda is characterized by the presence of

(a) chitinous exoskeleton, external segmentation and paired jointed appendages

(b) chitinous exoskeleton, external segmentation and paired appendages

(c) chitinous exoskeleton and antennae

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(d) chitinous exoskeleton, antennae and compound eyes

Options:

12820643627. A

12820643628. B

12820643629. C

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12820643630. D

Question Number: 27 Question Id: 12820611042 Question Type: MCQ Option Shuffling: No Display Question Number: Yes Single Line Question Option: No Option Orientation: Vertical

Correct Marks: 1 Wrong Marks: 0

O2 is likely to diffuse across the cell membrane more rapidly than Na+ because it is:

(a) Smaller

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(b) Hydrophilic

(c) Charged

(d) Nonpolar

Options:

12820643631. A

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12820643632. B

12820643633. C

12820643634. D

Question Number: 28 Question Id: 128206110

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