Match List I with List II

List I	List II
A. Commensalism	Balanus and Chthamalus
B. Mutualism	Mycorrhizae and legume plants
C. Parasitism	Cuscuta on hedge plants
D. Competition	Sea anemone and clownfish

Choose the correct answer from the options given below:

The process of cutting out of DNA fragments from agarose gel and their extraction from gel piece is known as:

Which of the following used hides to protect their body and buried their dead?

Arrange the steps involved in retroviral infection of an animal cell in a sequencial order :
(A) More virus particles are made.
(B) Virus eventually enters T-lymphocytes.
(C) Viral DNA incorporated in host DNA.
(D) RNA of HIV enters macrophages.
(E) By reverse transcription viral RNA forms viral DNA.
Choose the correct answer from the options given below:

The endosperm is absent in the seed of :

Choose the most appropriate option about the presence of nitrogenous bases; Cytosine, 5-methyl uracil and Uracil.

Identify the substance that can undergo bio-magnification in a food chain.

A 0.5 m long solenoid has 500 turns and has a flux density of \( 2.52 \times 10^{-3} \text{ T} \) at its centre.
The current flowing in the solenoid would be (given, \( \mu_0 = 4\pi \times 10^{-7} \text{ Hm}^{-1} \))

Reduction of nitrobenzene gives

The inverse of the function \(f: R \rightarrow R\) given by \(f(x)=2 x+7\) is :

Identify the incorrect statement about genetically modified plants.

Which one of the following is not true for a molecule that can act as a genetic material?

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.
'Coca alkaloids' are obtained from the plant-