The endosperm is absent in the seed of :

Cyclosporin A, which is used as an immunosuppressive agent, is produced by:

Match List - I with List - II.

List - I	List - II
(A) Down’s syndrome	(I) Inborn error of metabolism
(B) Klinefelter’s syndrome	(II) Absence of one of the X-chromosome
(C) Turner’s syndrome	(III) Presence of an additional copy of X-chromosome
(D) Phenylketonuria	(IV) Presence of an additional copy of chromosome number-21

Choose the correct answer from the options given below :

Secondary productivity is :

Read the given paragraph and answer the given question :
Parasitism has evolved in many taxonomic groups from plants to higher vertebrates. Many parasites have evolved to be host specific in such a way that both host and the parasite tend to co-evolve. In accordance with their life styles, parasite evolve special adaptations and complex life cycle.
Match List - I with List - II.

LIST I	LIST II
(A) Cuckoo and Crow	(I) Ectoparasite
(B) Copepods	(II) Commensal Organism
(C) Plasmodium	(III) Brood Parasitism
(D) Orchids and Mango tree	(IV) Endoparasite

Choose the correct answer from the options given below:

Arrange the following historical events in the history of life in chronological order?
(A) Natural selection
(B) Self-replicating molecules
(C) Eukaryotic cell
(D) Prokaryotic cell
Choose the correct answer from the options given below:

Read the following passage carefully and answer the given questions.
Bioactive molecule, cyclosporin A, that is used as an immunosuppressive agent in organ-transplant patients, is produced by the fungus Trichoderma polysporum. 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. Baculoviruses are pathogens that attack insects and other arthropods. The majority of baculoviruses used as biological control agents are in the genus Nucleopolyhedrovirus. These viruses are excellent candidates for species-specific, narrow spectrum insecticidal applications. They have been shown to have no negative impacts on plants, mammals, birds, fish or even on non-target insects. BOD refers to the amount of the oxygen that would be consumed if all the organic matter in one liter of water were oxidised by bacteria. The sewage water is treated till the BOD is reduced. Cheese, is one of the oldest food items in which microbes were used. Different varieties of cheese are known by their characteristic texture, flavour and taste. For example, the large holes in ‘Swiss cheese’ are due to production of a large amount of CO₂ by a bacterium named Propionibacterium sharmanii.
The greater the BOD of waste water-

Observe the diagram and answer the question given below .

Which of the following constitutes the first trophic level?

A capacitor charged from a 50 V d.c. supply is found to have a charge of \( 10 \ \mu\text{C} \).The capacitance of the capacitor would be:

The domain of the function \(\cos ^{-1}(2 x-3)\) is

The solution of the differential equation \(2 x \frac{d y}{d x}-y=3\) represents:

A spherical conductor placed in vacuum has capacitance of \( 3.14 \times 10^{-9} \, \text{F} \). Its radius will be:

If \(A=\left[\begin{array}{ccc}-1 & 2 & 3 x \\ 2 y & 4 & -1 \\ 6 & -1 & 0\end{array}\right]\) is a symmetric matrix, then the value of 22 - y is: