Identify the statements which are true with respect to colour blindness
A. Sex-linked recessive disorder
B. Sufferers are unable to differentiate between red or green colour
C. It occurs in 8% males and 0.4% females.
D. The defect is due to the mutation in genes present on 'Y' chromosome
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If sewage water is added to river water, it will:

Arrange the following steps of Polymerase Chain Reaction in correct sequence.
(A) Amplified DNA fragments
(B) Annealing of primers
(C) Extension
(D) Denaturation of dsDNA
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Which one of the following plants is the source of cannabinoids commonly used in drug abuse?

Arrange the given stages involved in replication of retrovirus.
(A) New viral RNA is produced by the infected cell
(B) Viral DNA is produced by reverse transcriptase
(C) Viral DNA is incorporated into host genome
(D) Viral RNA is introduced into animal cell
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Match List - I with List - II.

List - I	List - II
(A) Mutualism	(I) Abingdon tortoise in Galapagos island and goat
(B) Commensalism	(II) Crow and Cuckoo
(C) Brood Parasitism	(III) Sea anemone and Clown fish
(D) Competition	(IV) Lichen

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Which of the following is NOT an Intra Uterine Device ?

On the basis of the information available from the reaction:
\(\frac{4}{3}Al+O_2\rightarrow \frac{2}{3}Al_2O_3, \Delta G = -827 kJ/mol\)
The minimum e.m.f required to carry the electrolysis of \(Al_2O_3\) is (\(F = 96500 C\ mol^{-1}\)):

Question 4 (IUPAC Name of Freon 12):
The correct IUPAC name of Freon 12 is

An ammeter and a Voltmeter are to be connected in a circuit. Which of the following statements are correct?
(A) Ammeter has negligible resistance.
(B) Ammeter is always connected in series in the circuit.
(C) Voltmeter should have negligible resistance.
(D) Voltmeter should be connected in parallel so that the whole current may pass through it.
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Which one of the following is not a sexually transmitted infection?

Osmotic pressure measurements are less accurate and difficult to carry out. Therefore, this method is not useful for measuring molecular weights. But it is used to find out molecular weights of polymers eg. plastics, proteins and starch having many monomer units. Knowing the value of osmotic pressure of a given solution, molecular weight of the solute can be calculated using Van't Hoff equation.
In a nearly saturated solution, which of the following statements are correct?
A. If dissolution process is endothermic, solubility increases with increase in temperature.
B. If dissolution process is endothermic, solubility decreases with increase in temperature.
C. If dissolution process is exothermic, solubility decreases with increase in temperature.
D. If dissolution process is exothermic, solubility increases with increase in temperature.
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Which of the following serve as an important biofertiliser in paddy field?