Arrange the following wall layers of microsporangium starting from outer to inner layer.
(A) Tapetum
(B) Endothecium
(C) Middle layers
(D) Epidermis
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The detritus food chain (DFC) has at the first tropic level.

Match List-l with List-II

List-I (Disorders)	List-II (Features)
(A) Colour blindness	(I) 45 with 'XO'
(B) Haemophilia	(II) Trisomy of 21\textsuperscript{st} chromosome
(C) Down's Syndrome	(III) Mutation of certain genes on 'X' chromosome
(D) Turner's Syndrome	(IV) Protein involved in clotting of blood

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Plants can capture only 2-10% of the PAR and this small amount of energy sustains the entire world. Here PAR stands for:

Biolistics (gene gun) is suitable for:

The hormone responsible for milk ejection during lactation is:

Arrange the following events in correct order pertaining to sewage treatment plant?
(A) Bacteria produce a mixture of gases such as methane, hydrogen sulphide and carbon dioxide.
(B) Primary effluent is passed into aeration tank for the growth of microbes into flocs
(C) A small part of activated sludge is pumped back into aeration tank as inoculum and remaining to anaerobic sludge digesters.
(D) The bacteria and fungi in the sludge are digested by another kind of bacteria
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The vapour pressure of pure water at \(25^{\circ} C\) is 23.75 mmHg.
The vapour pressure of the solution obtained by dissolving 34.2 g of sucrose \(\left( C _{12} H _{22} O _{11}\right)\) in 100 g of water will be :

Read the passage carefully and answer the questions
The transition metals and their compounds are known for their catalytic activity. This activity is ascribed to their ability to adopt multiple oxidation states and to form complexes. Vanadium(V) oxide (in Contact Process), finely divided iron, and nickel (in Catalytic Hydrogenation) are some of the examples. Catalysts at a solid surface involve the formation of bonds between reactant molecules and atoms of the surface of the catalyst (first row transition metals utilise 3d and 4s electrons for bonding). This has the effect of increasing the concentration of the reactants at the catalyst surface and also weakening of the bonds in the reacting molecules (the activation energy is lowering). Also because the transition metal ions can change their oxidation states, they become more effective as catalysts.
\(TiCl_4 + Al(CH_3)_3\) is used as a catalyst in:

If \(A\) and \(B\) are two events such that \(P(A)=\frac{1}{2}, P(B)=\frac{1}{3}, P(B \mid A)=\frac{1}{4}\), then \(P(A \mid B)\) is :

Which of the following compounds will give the Hell-Volhard-Zelinsky reaction?

The correct decreasing order of basic strength of following amines in aqueous medium is.
(A) \((C_2H_5)_3N\)
(B) \((C_2H_5)_2NH\)
(C) \(C_2H_5NH_2\)
(D) \(NH_3\)
Choose the \textbf{correct} answer from the options given below:

Which one of the following techniques are used for early detection of the diseases?