Arrange the following steps for replication of HIV in a correct sequence:
A. Production of new viral RNA by infected cell.
B. Infection of normal cell by virus
C. Production of viral DNA
D. Production of new viruses
Choose the correct answer from the options given below

Identify the enzyme which is used to isolate genetic material from the bacterial cells.

Read the paragraph given below and answer the question.
Sutton and Boveri argued that the pairing and separation of a pair of chromosomes would lead to the segregation of a pair of factors they carried. Sutton united the knowledge of chromosomal segregation with Mendelian principles and called it the chromosomal theory of inheritance. Following this synthesis of ideas, experimental verification of the chromosomal theory of inheritance by Thomas Hunt Morgan and his colleagues, led to discovering the basis for the variation that sexual reproduction produced. Morgan worked with the tiny fruit files, which were found very suitable for such studies. They could be grown on simple synthetic medium in the laboratory. They complete their life cycle in a short span of time and a single mating could produce a large number of progeny flies. Also, there was a clear differentiation of the sexes the male and female flies are easily distinguishable. Also, it has many types of hereditary variations that can be seen with low power microscopes.
Which of the following scientist worked with Drosophila?

Choose the most appropriate option about the presence of nitrogenous bases; Cytosine, 5-methyl uracil and Uracil.

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.
The bottled juices are clarified by the combination of -

Match List-I with List-II

List-I (Techniques)	List-II (Related features)
(A) ELISA	(I) Production of mature insulin
(B) PCR	(II) Antigen-antibody interaction
(C) Autoradiograph	(III) Amplification of DNA
(D) Recombinant DNA technology	(IV) Photographic film

Choose the correct answer from the options given below:

The role of ethidium bromide in gel electrophoresis is:

\(s p^3\) hybridization leads to ______________

The following have zero average value in a plane electromagnetic wave

If C is the original value of the asset, S is the scrap value, n is the useful life of the asset and D is the annual depreciation, then

Let \(A=\left[a_{i j}\right]\) be a square matrix of order 3 with \(|A|=2\) and let \(C=\left[C_{i j}\right]\), where \(C_{i j}\) is the cofactor of \(a_{i j}\) in \(A\). Then \(|C|\) is equal to :

The amine which will not undergo benzoylation in alkaline medium is

Which reagent will distinguish Benzophenone from acetone ?