Arrange the following steps of PCR in correct sequence.
(A) Temperature induced denaturation of double stranded DNA.
(B) Isolation of gene of interest
(C) Amplification of gene by using Taq polymerase
(D) Primer annealing on the separated templates
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Identify the symptoms of Amoebiasis from the following.
(A) Constipation
(B) Diarrhoea and vomitting
(C) Abdominal pain and cramps
(D) Excess mucous and blood clots in stool
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Arrange the steps of biopsy and histopathology of tissue involved in detection of cancer.
(A) A thin section of tissue is stained
(B) Freezing of tissue in liquid nitrogen
(C) A piece of the suspected tissue cut into thin sections
(D) Examination under microscope
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The process of copying the genetic information from one strand of DNA to RNA is termed as:

Read the passage and answer the question : There are thousands of varieties of rice in India alone. The diversity of rice in India is one of the richest in the world. Basmati rice is distinct for its unique aroma and flavour and 27 documented varieties of Basmati are grown in India. There is reference to Basmati in ancient texts, folklore and poetry, as it has been grown for centuries. Several attempts have also been made to patent uses, products and processes based on Indian traditional herbal medicine, e.g. turmeric, neem. There has been growing realisation of the injustice, inadequate compensation and benefit sharing between developed and developing countries. The Indian Parliament has recently cleared a Bill that takes such issues into consideration, including patent terms emergency provisions and research and development initiative.
When a multinational company uses bio-resource of a country without proper authorisation and compensation then it is called as:

The age distribution plotted for the population is known as the 'Age pyramid'. Select the three types of age pyramids based on the shape and age groups:
(A) Expanding
(B) Inverted
(C) Stable
(D) Declining
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Read the following paragraph and answer the given questions:
DRUGS AND ALCOHOL ABUSE
The drugs, commonly abused are opioids, cannabinoids, and coca alkaloids. Opioids are the drugs, which bind to specific opioid receptors present in our central nervous system and gastrointestinal tract. Heroin, commonly called smack is chemically diacetylmorphine which is a white, odourless, bitter crystalline compound. Cannabinoids are a group of chemicals, which interact with cannabinoid receptors present principally in the brain. Natural cannabinoids are obtained from the inflorescences of the plant Cannabis sativa. The flower tops, leaves and the resin of cannabis plant are used in various combinations to produce marijuana, hashish, charas and ganja. Generally taken by inhalation and oral ingestion, these are known for their effects on cardiovascular system of the body. It interferes with the transport of the neuro-transmitter dopamine. Cocaine, commonly called coke or crack is usually snorted. It has a potent stimulating action on central nervous system, producing a sense of euphoria and increased energy. Excessive dosage of cocaine causes hallucinations. Other well-known plants with hallucinogenic properties are Atropa belladona and Datura. These days cannabinoids are also being abused by some sportspersons. 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. Several plants, fruits and seeds having hallucinogenic properties have been used for hundreds of years in folk-medicine, religious ceremonies and rituals all over the globe.
Heroine (Smack) which is extracted from the latex of poppy plant is chemically called:

Match List I with List II.

LIST I	LIST II
A. Female bird	I. ZZ
B. Male bird	II. XX
C. Male grasshopper	III. ZW
D. Female Drosophila	IV. XO

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The shape of \(XeF_6\) is :

The function of the tapetum is:

The area (in sq. units) of the region bounded by \(y=-1, y=2, x=y^3\) and \(x=0\) is equal to

In Young's double slit experiment, the width of the fringes obtained with light of wavelength 6000 \( \text{\AA} \) is 3.0 mm. If the entire apparatus is immersed in a liquid medium of refractive index 1.50, then the fringe width would be

In the circuit diagram shown in the figure, the resistance \( R_1 = 10 \, \Omega \), \( R_2 = 15 \, \Omega \) and E= 20 V. When the switch S is closed, the ratio of \( i_1 \) to \( i_3 \) will be: