Match List - I with List - II.

LIST I (Molecule)	LIST II (Function)
A. DNA ligase	I. snRNAs
B. RNA polymerase II	II. Discontinuous RNA synthesis
C. RNA polymerase III	III. 28S rRNA
D. RNA polymerase I	IV. hn RNA

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Observe the illustration and answer the following question:

Meiotic division in primary oocytes is arrested at:

World Summit on 'Sustainable Development' in 2002 was held in :

Read the following passage carefully and answer the given questions
The separated DNA fragments can be visualized only after staining the DNA with ethidium bromide followed by exposure to UV radiation. Bright orange colored bands of DNA in ethidium bromide stained gel exposed to UV light can be seen. The separated bands of DNA are cut out from the agarose gel and extracted from the gel piece. This step is known as elution. The DNA fragments purified in this way are used in constructing recombinant DNA by joining them with a cloning vector.
Which one of the following techniques is used to separate DNA fragments?

Choose the correct statements about organic farming:
(A) It does not use pesticides and urea.
(B) It uses only naturally produced inputs like compost.
(C) It utilizes genetically modified crops.
(D) It produces fruits rich in minerals and vitamins.
Choose the correct answer from the options given below:

Read the passage carefully and answer the given questions.
Recombinant DNA Technology Asexual reproduction preserves the genetic information, while sexual reproduction permits variation. Traditional hybridization procedures used in plants and animals breeding very often lead to inclusion and multiplication of undesirable genes along with the desired genes. The techniques of genetic engineering, which include creation of recombinant DNA, use of gene cloning and gene transfer, overcome this limitation and allow us to isolate and introduce only one or a set of desirable genes without introducing genes into the target organism.
Which one of the following is not used as a vector in recombinant DNA technology?

Which of the following pair of contrasting traits was not studied by Mendel ?

Match List - I with List - II.

List I	List ll
(A) Sterilisation procedure in males	(I) Saheli
(B) Oral contraceptive	(II) Multiload 375
(C) Copper releasing IUD	(III) Lippes loop
(D) Non-medicated IUD	(IV) Vasectomy

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Read the given passage carefully and answer the questions
Antibiotics have greatly improved our capacity to treat deadly diseases such as plague, whooping cough (kali khansi), diphtheria (gal ghotu) and leprosy (kusht rog), which used to kill millions all over the globe.
Streptokinase produced by the bacterium Streptococcus and modified by genetic engineering is used as a 'clot buster' for removing clots from the blood vessels of patients who have undergone myocardial infarction leading to heart attack. Microbes are diverse-protozoa, bacteria, fungi and microscopic animal and plant viruses, viroids and also prions that are proteinacious infectious agents. The puffed-up appearance of dough is due to the production of CO₂ gas. Similarly the dough, which is used for making bread, is fermented using baker's yeast (Saccharomyces cerevisiae). Primary sewage treatment basically involve physical removal of particles - large and small from the sewage through filtration and sedimentation. These are removed in stages; initially, floating debris is removed by sequential filtration. Then the grit (soil and small pebbles) are removed by sedimentation. All solids that settle form the primary sludge, and the supernatant forms the effluent. The effluent from the primary settling tank is taken for secondary treatment. The primary effluent is passed into large aeration tanks, where it is constantly agitated mechanically and air is pumped into it. This allows vigorous growth of useful aerobic microbes into flocs. While growing, these microbes consume the major part of the organic matter in the effluent.
Primary sludge treatment involves -

A small signal voltage \(e=e_o\) sin wt is applied across an ideal capacitor of capacitance C. The correct statement is:

Match List-l with List-II

List-l (Structure)	List-II (Relation)
(A) Thalamus	(I) Seed
(B) Nucellus	(II) Fruit
(C) Ovule	(III) Germination
(D) Micropyle	(IV) Perisperm

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\(\int_0^1 \tan ^{-1}\left(\frac{2 x-1}{1+x-x^2}\right) d x\) is equal to :

A full wave rectifier circuit is operating from 50 Hz mains frequency. In the output, the fundamental frequency in the ripple would be: