In biolistic method, the cells are bombarded with high velocity microparticles of:

Match List I with List II

List - I	List - II
(A) Both the species are benefitted	(I) Competition
(B) One of the species is benefitted but the other is harmed	(II) Parasitism
(C) One of the species is benefitted but the other is neither benefitted nor harmed	(III) Commensalism
(D) Both the species are harmed	(IV) Amensalism
	(V) Mutualism

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Read the passage carefully and answer the questions given along
Our immune system plays the major role in preventing diseases when we are exposed to disease-causing agents. Immunity is of two types: (i) Innate immunity and (ii) Acquired immunity. The human immune system consists of lymphoid organs, tissues, cells and soluble molecules like antibodies. The immune system also plays an important role in allergic reactions, auto-immune diseases and organ transplantation. The primary lymphoid organs are bone marrow and thymus. The secondary lymphoid organs are spleen, lymph nodes, tonsils, Peyer's patches of small intestine and appendix. There is lymphoid tissue also located within the lining of the major tracts (respiratory, digestive and urogenital tracts) called mucosa associated lymphoid tissue (MALT). It is important to note that HIV/AIDS is not spread by mere touch or physical contact; it spreads only through body fluids. AIDS has no cure, prevention is the best option. Adolescence is accompanied by several biological and behavioural changes and surveys and statistics show that use of drugs and alcohol has been on the rise especially among the youth. Factors associated with drug and alcohol abuse among adolescents are a child's natural curiosity, stress, the perception among youth that it is 'cool' or progressive to smoke, media exposure and an unstable or unsupportive family structures and peer pressure. It is best to identify the situations that may push an adolescent towards use of drugs or alcohol, and to take remedial measures well in time.
Active immunization is most suitable method for:

Failure to segregation of chromatids during cell division cycle which involves gain or loss of chromosome(s) is called:

Match List-l with List-ll

List-l (Conditions)	List-II (Explanations)
(A) Apocarpous	(I) Gynoecium consists of a single pistil
(B) Syncarpous	(II) Gynoecium consists of a more than one pistil
(C) Multicarpellary	(III) More than one pistils fused together
(D) Monocarpellary	(IV) More than one free pistils

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The entry of pollen tube in the embryo sac is guided by :

Read the following passage carefully and answer the given questions. During anaerobic sludge digestion, bacteria produce a mixture of gases such as methane, hydrogen sulphide and carbon dioxide. These gases form biogas and can be used as source of energy as it is inflammable. The bioactive molecule, cyclosporin A, that is used as an immunosuppressive agent in organ-transplant patients, is produced by the fungus Trichoderma polysporum. You must have noticed that bottled fruit juices bought from the market are clearer as compared to those made at home. This is because the bottled juices are clarified by the use of pectinases and proteases. Statins produced by the yeast Monascus purpureus have been commercialised as blood-cholesterol lowering agents. It acts by competitively inhibiting the enzyme responsible for synthesis of cholesterol. The BOD test measures the rate of uptake of oxygen by microorganisms in a sample of water and thus, indirectly, BOD is a measure of the organic matter present in the water.
During anaerobic sludge digestion, bacteria produce the biogas. The composition of this biogas is -

Two pipes A and B can fill a tank in 20 minutes and 30 minutes respectively.
Both pipes A and B are opened together for some time and then pipe B is turned off.
If the tank is filled in 15 minutes, then after how many minutes is pipe B turned off?

It was found that \(0.1 mol L ^{-1}\) of ammonia took 200 s to be decomposed to half the initial concentration. If the decomposition follows zero order reaction, then the rate constant is

Flower colour in Antirrhinum sp. is an example of:

A tub contains \(60\) litres of milk. From this tub, \(6\) litres of milk was taken out and replaced with water. This whole process was repeated further two more times. How much milk is there in the tub now?

The rate of decomposition is controlled by:

An object approaches a convex lens from distance with a uniform speed of 3 m/s and stops at the focus. The image