Arrange the following step of PCR in correct sequence.
(A) Extension of Primer
(B) Annealing
(C) Denaturation of ds DNA
(D) Amplification
(E) Use of DNA polymerase and deoxynucleotides
Choose the correct answer from the options given below:

Read the following paragraph and answer the given questions.
Cancer detection is based on biopsy and histopathological studies. Techniques like radiography (use of X-rays), CT (computed tomography) and MRI (magnetic resonance imaging) are very useful to detect cancers of the internal organs. Do you know why mother's milk is considered very essential for the new-born infant? The yellowish fluid colostrum secreted by mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. Different species of Plasmodium (P. vivax, P. malaria and P. falciparum) are responsible for different types of malaria. Of these, malignant malaria caused by Plasmodium falciparum is the most serious one and can even be fatal. The exaggerated response of the immune system to certain antigens present in the environment is called allergy. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy. Drugs like barbiturates, amphetamines, benzodiazepines, and other similar drugs, that are normally used as medicines to help patients cope with mental illnesses like depression and insomnia, are often abused. Morphine is a very effective sedative and painkiller, and is very useful in patients who have undergone surgery.
The drug, which is very effective sedative and painkiller and useful for patients who have undergone surgery is -

Match List I with List II

LIST I (Name of interaction)	LIST II ('o' represents neutral, '+'represents benificial, '-'represents detrimental)
A. Commensalism	I. -,-
B. Competition	II. +,+
C. Mutualism	III. -,0
D. Amensalism	IV. +,0

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Match List-l with List-II

List-I (Terms)	List-II (Examples)
(A) Divergent evolution	(I) Eye of the octopus and mammals
(B) Convergent evolution	(II) Forelimbs in vertebrate animals
(C) Evolution by anthropogenic action	(III) Australian marsupials
(D) Adaptive radiation	(IV) Industrial melanization in moth

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Match List I with List - II. -

List - l	List - II
(A) Colostrum	(l) T-lymphocyte
(B) Histamine	(II) Preformed antibodies
(C) Passive immunisation	(III) Yellowish fluid
(D) Cell-mediated immunity	(IV) Mast cell

Choose the correct answer from the options given below :

Sparrow comes under which of the following categories:

Heroin, commonly called smack is chemically _________ which is a white, odourless, bitter crystalline compound.

Read the following passage given below and answer the question.
Production of electricity by thermal plants is not very efficient method. It is now possible to make cells in which reactants are fed continuously to the electrodes and products are also removed continuously. One of the most successful fuel cells is hydrogen fuel cell.
In Hydrogen fuel cell, which gas is undergoing oxidation?

There are two electric charges, \( Q_1 \) and \( Q_2 \), placed in vacuum. Identify the correct statements from the following
1. There will be an electrostatic force between them.
2. If these charges are placed in water, the force between them will increase.
3. The electrostatic force between them is a conservative force.
4. If both of the charges are doubled as \( 2Q_1 \) and \( 2Q_2 \), then the force between them will become 4 times.
Choose the correct answer from the options given below:

A galvanometer has a resistance of \(8 \Omega\). It is shunted by a wire of resistance \(2 \Omega\). If the total current is 2 A, the current passing through the shunt is

What is the hybridisation of metal ion in \(\left[ Ni ( CO )_4\right]\) compound?

The IUPAC name of the following compound is

A car starts from a point \(P\) at time \(t=0\) seconds and stops at \(Q\).
The distance \(x\), in meters, covered by it in \(t\) seconds is given by \(x(t)=t^3\left(3-\frac{t^2}{5}\right)\).
The distance between \(P\) and \(Q\) is: