Match List-I with List-II

List-I (Characteristics)	List-II (Examples)
(A) Symbiotic association with roots of leguminous plants	(I) Glomus
(B) Fixes atmospheric nitrogen while free living in the soil	(II) Rhizobium
(C) Symbiotic association of fungi and plants	(III) Anabaena
(D) Cyanobacteria which can fix atmospheric nitrogen	(IV) Azotobacte

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Observe the diagram and answer the question

(Disclamer: Figures are not to scale)
Which is the correct statement with respect to ecological pyramids?

Read the following passage carefully and answer the given questions.
Restriction endonuclease on finding its specific recognition sequence, bind to the DNA and cut each of the two strands of the double helix at specific points in their sugar -phosphate backbones. Each restriction endonuclease recognises a specific palindromic nucleotide sequences in the DNA. Since the DNA is enclosed within the membranes, we have to break the cell open to release DNA along with other macromolecules such as RNA, proteins, polysaccharides and also lipids. This can be achieved by treating the bacterial cells/plant or animal tissue with enzymes such as lysozyme (bacteria), cellulase (plant cells), chitinase (fungus). Now a days the most commonly used matrix is agarose which is a natural polymer extracted from sea weeds. The DNA fragments separate (resolve) according to their size through sieving effect provided by the agarose gel. The first restriction endonuclease-Hind II, whose functioning depended on a specific DNA nucleotide sequence was isolated and characterised five years later. It was found that Hind II always cut DNA molecules at a particular point by recognising a specific sequence of six base pairs. In addition to 'ori', the vector requires a selectable marker, which helps in identifying and eliminating non-transformants and selectively permitting the growth of the transformants. Transformation is a procedure through which a piece of DNA is introduced in a host bacterium. Normally, the genes encoding resistance to antibiotics such as ampicillin, chloramphenicol, tetracycline or kanamycin, etc., are considered useful selectable markers for E. coli
Chitinase is used to disrupt the membranes of:

Where are IUDs placed in the human female reproductive sytem for contraception?

Sequentially arrange the evolutionary stages of humans from the given options.
(A) Australopithecines
(B) Homo habilis
(C) Dryopithecus
(D) Homo erectus
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Read the Passage carefully and answer the the questions
The DNA fragments can be separated by a technique known as gel electrophoresis. Since DNA fragments are negatively charged molecules, they can be separated by forcing them to move towards the anode under an electric field through a medium/matrix. The separated DNA fragments can be visualised only after staining the DNA with a compound known as ethidium bromide followed by exposure to UV radiation. The repeated amplification of DNA is achieved by the use of a thermostable DNA polymerase (isolated from a bacterium, Thermus aquaticus). After completion of the biosynthetic stage, the product has to be subjected through a series of processes before it is ready for marketing as a finished product. The downstream processing and quality control testing vary from product to product. The convention for naming restriction enzymes is the first letter of the name comes from the genus and the second two letters come from the species of the prokaryotic cell from which they were isolated.
The downstream processing does not include -

Which of the following statements are correct with respect to gametogenesis?
(A) Division in primary oocytes is arrested at Prophase-I
(B) Secondary oocytes are diploid
(C) Spermatogonia undergo meiosis to form primary spermatocytes
(D) Spermatid transformed into spermatozoa by spermiogenesis
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What will be the product for the following reactions?
\(CH_3 - X \xrightarrow{KCN}\) A
\(CH_3 - X \xrightarrow{AgNO_2}\) B

What is/are true regarding most of the medicines?
A. They are colloidal in nature
B. Their particle size range from \(1-1000\) nm
C. They have large surface area
D. They are easily assimilated
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The magnitude of induced emf in a coil depends on the :

Match List I with List II

LIST - I	LIST - II
A. Mathematical expression for rate of reaction	I. rate constant
B. Rate of reaction for zero order reaction is equal to	II. rate law
C. Unit of rate constant for zero order reaction is same as that of	III. order of slowest step
D. Order of a complex reaction is determined by	IV. rate of reaction

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Choose the correct order of increasing acidic strength of following compounds:
(A) 3-Nitrophenol
(B) Phenol
(C) Propan-1-ol
(D) 3,5-Dinitrophenol
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Displacement current goes through the gap between the plates of a capacitor when the charge of the capacitor is