University of Hyderabad (UoH) 2010 Entrance Exams Other Entrance Exams Integrated M.Sc Programme Entrance - Biotechnology - Question Paper

Part-A

l

Which of the following sequence expresses correct boiling point?

A.    pentane > isopentane > neopentane

B.    isopentane > neopentane > pentane

C.    neopentane > isopentane > pentane

D.    neopentane > pentane > isopentane

2

Which one of the following compound is Lewis base?

A.    aluminum chloride

B.    boron trifluoride

'

C.    diethyl ether

D.    stannic chloride

3

IUPAC name of CH₂-CH₃

' 1

H3C-C-CH2-CH-CH3 1 1 Br CH₃

A.    2-bromo- 2-ethyl- 4-methyl pentane

B.    4-bromo- 4-ethyl- 2-methyl pentane

C.    4-bromo- 2,4-dimethyl hexane

D.    3-bromo- 3,5-dimethyl hexane

4

What is the product of oxidation of 2-pentanol with dichromate?

A.    2-pentanone

B.    pentanoic acid

C.    pentaldehyde

D.    2-pentene

5

The aldol self-condensation is not possible with

A.    acetaldehye

B.    acetophenone

C.    ketone

D.    benzophenone

6

Which of the following series of H-atomic spectral lines fall in the region of UV

A.    Lyman

B.    Balmer

C.    Paschen

D.    Bracket

7

The electron configuration Is 2s 2p of

M M A M Jt > ' > '

A.    is ground state of nitrogen atom

B.    violates Hunds rule

C.    violates Paulis exclusion principle

D.    violates Aufbau principle

8

Oxidation number of Mn in KMn04 is

A.    +III

B.    +V

C.    +VII

D.    +IX

9

Bronze is an alloy of

A.    copper & zinc

B.    copper & iron

C.    copper & nickel

D.    copper & tin

10

Coordination number of an atom/ion in an octahedral structure

A.    8

B.    6

C.    4

D.    3

11

Which of the following about atomic/ionic radii is correct?

A.    Ca < Ca²⁺; Fe < Fe²⁺ < Fe³⁺; Br' < Br

B.    Ca<Ca²+;Fe<Fe³+<Fe²+;Br'<Br

C.    Ca²⁺ < Ca; Fe²⁺ < Fe³⁺ < Fe; Br < Br

D.    Ca²⁺ < Ca; Fe³⁺ < Fe²⁺ < Fe; Br < Bf

12

Structure of SF₄ is

A.    tetrahedral

B.    square planar

C.    trigonal bipyramidal

D.    see-saw shape

13

Natural rubber is

A.    addition polymer

B.    condensation polymer

C.    copolymer

D.    thermosetting polymer

14

IUPACnameof[Pt(NH₃)₅Cl]Br3

A.    chloro petnaammine platinum (III) bromide

B.    petnaammine chloro platinum (III) bromide

C.    chloro petnaammine platinum (IV) bromide

D.    petnaammine chloro platinum (IV) bromide

15

SnI reaction on optically active substrate mainly gives

A.    Inversion of configuration

B.    retention of configuration

C.    racemic product

D.    depends on solvent

16

Which one of the following does not form zwitterion?

A.    betaine

B.    tricine

C.    aspartic acid

D.    pyruvic acid

17

If half life period of a reaction is independent of its initial concentration, then order of the reaction is

1

A.    zeroth order

B.    first order

C.    second order

D.    inverse of half life period

18

What is the temperature of two moles of a gas in a 16 L container under 2 atm pressure? (gas constant ~ 0.08 L atm K"¹ mol'¹)

A.    100K

B.    200K

C.    400 K

D.    800 K

19

In a homogenous mixture of water and ethanol which shows an equilibrium between its liquid and gas phase, what is the number of degree of freedom to express the physical properties of the mixure?

A.    4

B.    3

C.    2

D.    1

20

The paramagnetic property of oxygen molecule arises from HOMO with

A.    unpaired 7u electrons

B.    unpaired n* electrons

C.    paired 7t electrons

D.    paired ;t* electrons

21

Which of the following has major contribution to the total global warming

A.    CFC,N₂0

B.    C0₂, N₂0

C.    CO2, methane ...

D.    methane ,CFC

22

Bt. Brinjal is a transgenic brinjal created out of inserting a gene [cryl Ac] from the soil bacterium Bacillus thuringenesis into Brinjal.This is served to give Brinjal plant resistance against

A.    Dictyopteran insects

B.    Coleopteran insects

C.    Dipteran insects

D.    Lepidopteran insects

23

Match the followings: '

a.    L- Tryptophan i. Auxin synthesis

b.    L- Glutamic acid ii. Pollination

c.    L-Methionine iii. Fruit ripening

d.    L-Lysine iv. Ethylene synthesis

e.    L-Histidine v. Stomata opening

A.    a-i, b-v, c-iv, d-ii, e-iii

B.    a-ii, b-I,c-iii,d-iv,e-v

C.    a-i,b-iii, c-iv, d-v,e-ii

D.    a-i, b-ii,c-iv,d-iii,e-v

24

Which one of the following is connecting link between Photosystem I and Photosystem II

A.    plastocyanin

B.    Ferredoxin

C.    cytochromeC

D.    cytochrome bf

C.    Augmentin

D.    Ceclor

30

Borellia burgdorferi causes the disease

A.    Lyme's Disease

B.    Rocky Mountain Spotted Fever

C.    Hanta

D.    Rabies

31.

Which of the following is NOT true of Neisseria gonorrhea?

A.    Is a mucosal pathogen

B.    Requires a vaginal pH of 5 or more to grow

C.    Can disseminate in the immunosuppressed '

TP- Complications include ectopic pregnancy, PID and sterility

32

Community-acquired pneumonia is caused by which of the following?

A.    Klebsiella pneumoniae

B.    Chlamydia pneumoniae

C.    Streptococcus pneumoniae t). Mycoplasma pneumonia

33

Which of the following is correct regarding the Mycobacterium Tuberculosis?

A.    Penetrates the alveoli when inhaled

B.    Destroys tissue in the lymph system

C.    Forms lesions around which granulomas form

D.    All of the above

34

What is the most common anaerobe in the normal body flora?

A.    Salmonella enteriditis

B.    Campylobacter jejuni

C.    Yersinia pestis

D.    Escherichia coli

35

Who developed the Germ Theory of Disease?

A.    Koch

B.    Fleming

C.    van Leeuwenhoek

D.    Pasteur

36

Where is the site of ribosome synthesis?

A.    Cytoplasm

B.    Nucleoli

C.    Mitochondria

1). Endoplasmic reticulum

37

What are the respective sizes of a virus and a plant cell? '

A.    3mm, 30mm

B.    30nm, 30(im

C.    30|j.m, 30nm

D.    3cm, 30cm

38

What cellular compartment becomes acidic (high concentration of hydrogen ions) during mitochondrial electron transport?

A.    Mitochondrial stroma

B.    Cytoplasm

C.    Endoplasmic reticulum

D.    Space between inner and outer mitochondrial membranes

39

The structure pictured is the Haworth structure of CH₂OH

A.    Beta D galactose ,-o

H /I \ OH.

B.    Beta-D- glucose V ^H \|

Jx OH H A

C.    AIpha-D- glucose y

J), Alpha-D- galactose H OH

40

What happens to an enzyme when it denatures?

A.    The activation energy of the reaction is doubled

B.    The activation energy of the reaction is lowered

C.    Its optimal conditions for temperature of the enzyme are doubled

D.    The shape of the enzyme molecule is changed

41

A man who is affected with phenylketonuria marries a woman who is heterozygous at that locus. What is the probability that their first child will have phenylketonuria?

A.    1/8

B.    1/4

C.    1/2

D.    3/4

42

Which of the following represents a testcross?

A.    WW x ww

B.    Ww x WW

C.    WW x WW

D.    Ww x Ww

43

RNA molecules that exhibit catalytic activity are called

A.    mRNAs

B.    Ribosomes

C.    Ribonucleases

D.    Ribozymes

44

All of the following contribute to promoter binding by RNA polymerase in E. coli except the

A.    Rho factor

B.    -35 consensus sequence .

C.    -10 consensus sequence '

D.    P subunit of RNA polymerase

45

Rubisco catalyses the carboxylation and also the oxygenation of ribulose 1,5-biphosphate. The initial products of these reactions include which of the following?

i)    Glyceraldehyde 3-phosphate

ii)    2-phosphoglycerate

iii)    3-phosphoglycerate

A.    I only

B.    II only

C.    Ill only

D.    II and III

46

A moving particle with a mass of 40 kg produces a net force of 20 N. How much distance does it cross after lOsec starting from its rest?

A.    25 m

B.    50 m

C.    100 m

D.    200 m

47

Assume a simple pendulum with a length of 0.2 m takes nearly 0.9 second for a complete cycle. If its length is increased to 0.8m, how long will it take to complete a cycle?

A.    0.45 s

B.    0.9 s

C.    1.8 s

D.    3.6 s

48

What is the work done (approximately), when a force of 100 N is applied at an angle of 30 deg to the horizontal axis and used to move a particle by a distance of 2m?

A.    100J

B.    142J

C.    173 J

D.    282J

49

A liquid has specific gravity of 1.5 (with reference to water at 4C). What will be the approximate weight of 5 mL of that liquid?

A.    0.3g

B.    1.5g

C.    3.3g

D.    7.5g

50

How many are the number of orbitals allowed for the electron which has the azimuthal quantum number 2

A.    2

B.    3

C.    4

D.    5

51

A cylindrical container with radius lm & height 7m is filled with water. What is the pressure exerted by water at the bottom of the container?

A.    2.2 X 10⁵ Pa

B.    2.2 X 10⁴ Pa

C.    7 X 10⁵ Pa

D.    7 X 10⁴ Pa

52

Pycnometer is used to calculate

A.    capillary force

B.    surface tension

C.    viscosity

D.    specific gravity

53

At higher altitudes from the sea level the atmospheric temperature decreases. Which of the following correctly explains this phenomenon?

A.    decrease in atmospheric pressure

B.    increase in atmospheric pressure

C.    moving away from radiation

D.    surface area of earth increases

54

What is the refractive index of a medium, when light in the air falls with incident angle of 45 deg on the medium is refracted by an angle of 30 deg?

A.    2

B.    1/2

c. VI

D. 1/V2

55

When two plane mirrors are kept at an angle of 90o and an object is kept in between, how many images will be observed on mirrors?

A.    1

B.    2

C.    3

D.    4

56

Image of an object at infinite distance on a convex mirror is

A.    virtual & upright

B.    virtual & inverted

C.    real & upright

D.    real & inverted

57

In general, for a semiconductor, when temperature is increased, current resistivity

A.    decreases linearly

B.    increases linearly

C.    decreases non linearly

D.    increases non linearly

58

When two resistors with 0.5 2 and 0.25 2 are connected parallel, what is the final effective resistance of the system?

A.    0.125 Q

B.    0.75 a

C.    6Q.

D.    8Q

59

What will be the change in magnitude of magnetic field (B) at the centre of a coil which has 50 turns is modified into 100 turns such that other parameters are kept same.

A.    B/2

B.    B

C.    2B

D.    B²

60

According to Doppler effect, when will an observer observe red shift?

A.    source moves away from the observer

B.    sources moves towards observer

C.    both source and observer moving at constant speed

D.    both source and observer do not move

61

A & B are two sets such as A c: B, with in an universal set U. What is A U B?

A.    A

B.    B

C.    A

D.    B

62

A boy is flying a kite. The kite strikes on a tower head which is nearly 50m away from him. If thread of the kite makes 45 angle from the ground, then what is the height of the tower? Consider the effect of boys height is negligible.

A.    10 m

B.    25m

C.    50m

D.    100m

63

What is the product of (1+i) multiplied with (2+2i)

A.    4+4i

B.    4-4i

C.    4 ...........

D.    4i

64

If x² +7 = 0, then x =

A.    7

B.    4l

C.    JTi

D.

65

How many different kinds of groups of 3 members can be formed from the set of 5 students? '

A.    5

B.    10 '

C.    15

D.    20

66

If the intersection angle of two straight lines is 45 and slope of one of the lines is 2, then slope of the other lines is =

A.    1

B.    -1

C.    1/3

D.    -1/3

67

What is the -intercept of the line: 3x-5y-15=0

A.    -5

B.    5

C.    -3

D.    3

68

How many edges will a regular polygon with an interior angle 135 contain?

A.    4

B.    6

' i i

C.    8 ^f

D.    10

69

If a standard deviation of a data set with 10 samples is 9, what is the variance value?

A.    3

B.    18

C.    81

D.    90

70

In a village of 100 homes, 20 homes have cows, 50 homes have goats and 10 homes have both. What is the probability of finding a home which has only cows?

A.    0.1

B.    0.2

C.    0.33

D.    0.5

71

'f^A = (4 5^{dB =} (5

* e d

* a d

D. G 4^s)

72

f 1 + sinx

I-5 dx =

J cosx

A.    tan x - se x + C

B.    tanx + sex + C

C.

-tanx + sex + C

D.

- tan x - se x + C

73.

/ x e* eh: = ?

A.

x e* + C

B.

x e^x + e* + C

C.

-xe^x + C

D.

xe*-e^x + C

74.

Find the order

and the degree of the equation:

<* + 2)²<S>

* + 2* <f>² - ⁴

A.

1 &3

B.

2 & 2

C.

3 & 2

D.

2 & 3

75

The Probability that a man speaks the truth is 3/5 . If he tosses a coin and reports

that it is a head, then what is the probability that it is truly head?

A.

1/2

B.

3/5

C.

3/10

. D.

6/5