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If there are 999 bases in RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?

Option: 1

1


Option: 2

11


Option: 3

33


Option: 4

333


Identify the alloy containing a non-metal as a constituent in it.

Option: 1

Invar


Option: 2

Steel


Option: 3

Bell metal


Option: 4

Bronze


The current (I) in the inductance is varying with time according to the plot shown in figure.

Which one of the following is the correct variation of voltage with time in the coil?

Option: 1


Option: 2


Option: 3


Option: 4


Standard enthalpy of vapourisation \Delta_{\text{vap}}  Ho for water at 100oC is 40.66 kJ mol-1. The internal energy of vaporization of water at 100oC (in kJmol-1) is:

Option: 1

+ 37.56


Option: 2

- 43.76


Option: 3

+ 43.76


Option: 4

+ 40.66


Pigment-containing membranous extensions in some cyanobacteria are:

Option: 1

Chromatophores


Option: 2

Heterocysts


Option: 3

Basal bodies


Option: 4

Pneumatophores


The amount of heat energy required to raise the temperature of 1g of Helium at NTP from T_{1}K to  T_{2}K  is:

Option: 1

\frac{3}{2}N_{a}k_{B}(T_{2}-T_{1})


Option: 2

\frac{3}{4}N_{a}k_{B}(T_{2}-T_{1})


Option: 3

\frac{3}{2}N_{a}k_{B}\frac{T_{2}}{T_{1}}


Option: 4

\frac{3}{8}N_{a}k_{B}(T_{2}-T_{1})


Identify the correct order of solubility in aqueous medium:

Option: 1

ZnS>Na_{2}S>CuS


Option: 2

Na_{2}S>CuS>ZnS


Option: 3

Na_{2}S>ZnS>CuS


Option: 4

CuS>ZnS>Na_{2}S


Anoxygenic photosynthesis Is characterstics of :

Option: 1

Rhodospirillum


Option: 2

Spirogyra


Option: 3

Chlamudomonas


Option: 4

Ulva


Which of the following species contains an equal number of \sigma and \pi bonds ?

Option: 1

(CN)2


Option: 2

CH2(CN)2


Option: 3

HCO_{3}^{-}


Option: 4

XeO4


Each of the two strings of length 51.6 cm and 49.1 cm are tensioned separately by 20 N force. Mass per unit length of both the strings is same and equal to 1 g/m. When both the strings vibrate simultaneously the number of beats is:

Option: 1

7


Option: 2

8


Option: 3

3


Option: 4

5


The driver of a car travelling with speed 30 m/sec towards a hill sounds a horn of frequency 600 Hz. If the velocity of sound in air is 330 m/s, the frequency of reflected sound as heard by driver is:

Option: 1

555.5 Hz


Option: 2

720 Hz


Option: 3

500 Hz


Option: 4

550 Hz


A bar magnet having a magnetic moment of 2 x 104 JT-1 is free to rotate in a horizontal plane. A horizontal magnetic field B = 6 x 10-4 T exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction 60° from the field is:

Option: 1

12 J


Option: 2

6 J


Option: 3

2 J


Option: 4

0.6 J


Which one of the following is employed as a tranquilizer?

Option: 1

Naproxen


Option: 2

Tetracycline


Option: 3

Chlorpheninamine


Option: 4

Equanil


Green chemistry means such reactions which

Option: 1

Produce colour during reactions


Option: 2

reduce the use and production of hazardous chemicals


Option: 3

are related to the depletion of ozaone layer


Option: 4

study the reactions in  plants


The cell junction called tight, adhering and gap junctions are found in

Option: 1

connective tissue


Option: 2

epihelial tissue


Option: 3

neural tissue


Option: 4

muscular tissue


When monochromatic radiation of intensity I fall on a metal surface, the number of photoelectron and their maximum kinetic energy are N and T respectively. If the intensity of radiation is 2I, the number of emitted electrons and their maximum kinetic energy are respectively

Option: 1

N and 2T


Option: 2

2N and T


Option: 3

2N and 2T


Option: 4

N and T


Two identical bar magnets are fixed with their centres at a distance d apart. A stationary charge Q is placed at P in between the gap of the two magnets at a distance D from the centre O as shown in the figure

The force on the charge Q is

Option: 1

Zero


Option: 2

Directed along OP


Option: 3

Directed along PO


Option: 4

Directed perpendicular to the plane of paper


Which of the following ions will exhibit colour in aqueous solutions?

Option: 1

Sc3+ (Z = 21)


Option: 2

La3+ (Z = 57)


Option: 3

Ti3+ (Z = 22)


Option: 4

Lu3+ (Z = 71)


In a set of reactions, ethyl benzene yielded a product D.

'D' would be :

Option: 1


Option: 2


Option: 3


Option: 4


Which of the following statements about primary amines is 'False'?

Option: 1

Alkyl amines are stronger bases than ammonia


Option: 2

Alkyl amines are stronger bases than aryl amines


Option: 3

Alkyl amines react with nitrous acid to produce alcohols


Option: 4

Aryl amines react with nitrous acid to produce phenols


Which one of the following pairs is incorrectly matched?

Option: 1

Glucagon - Beta cells (source)


Option: 2

Somatostatin - Delta cells (source)


Option: 3

Corpus luteum - Relaxin (secretion)


Option: 4

Insulin - Diabetes mellitus (disease)


What is common between vegetative reproduction and Apomixis?

Option: 1

Both occur round the year


Option: 2

Both produces progeny identical to the parent


Option: 3

Both are applicable to only dicot plants


Option: 4

Both bypass the flowering phase


Ureters act as urinogenital ducts in

Option: 1

Frog's both males and females


Option: 2

Frog's males


Option: 3

Human males


Option: 4

Human females


Which one of the following correctly represents the normal adult human dental formula?

Option: 1

\frac{2}{2},\frac{1}{1},\frac{2}{2},\frac{3}{3}


Option: 2

\frac{3}{3},\frac{1}{1},\frac{3}{3},\frac{3}{3}


Option: 3

\frac{3}{3},\frac{1}{1},\frac{3}{2},\frac{1}{1}


Option: 4

\frac{2}{2},\frac{1}{1},\frac{3}{2},\frac{3}{3}


One of the constituents of the pancreatic juice while poured into the duodenum in humans is

Option: 1

Trypsin


Option: 2

Enterokinase


Option: 3

Trypsinogen


Option: 4

Chymotrypsin


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