Arrange the following events in the order of their occurrence in tobacco plants to prevent infestation of nematode (Meloidogyne incognitia), based on the process of RNA interference.
(A) Specific mRNA of the nematode is silenced
(B) DNA produced sense and anti-sense RNA
(C) Nematode specific genes were introduced into the host plant
(D) dsRNA is formed and RNAi is initiated
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Identify the correct statements with respect to human evolution
A. Modern Homo sapiens arose during ice age between 50,000 to 75,000 years.
B. Ramapithecus was more man-like.
C. The brain capacity of Homo erectus was about 650-800 cc.
D. Dryopithecus was more ape-like.
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Read the passage carefully and give the answers to the question :
India was amongst the first countries in the world to initiate action plans and programmes at a national level to attain total reproductive health as a social goal.
These programmes called 'family planning' were initiated in 1951 and were periodically assessed over the past decades. Improved programmes covering wider reproduction-related areas are currently in operation. Creating awareness among the people about various reproduction-related aspects and providing facilities and support for building up a reproductively healthy society are the major tasks under these programmes.
'Saheli' - an oral contraceptive pill, also known as the 'Once a week' pill, was developed by :

Identify the correct statement about decomposition
(A) The rate of decomposition is quicker, if detritus is rich in nitrogen and sugar.
(B) Decomposition is largely an oxygen requiring process.
(C) The rate of decomposition is slow, if detritus is rich in chitin and lignin.
(D) The rate of decomposition is slow, if detritus is rich in nitrogen and sugar.
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The correct sequence of the formation of pollen grains is -
(A) Sporogenous tissue
(B) Formation of microspore
(C) Microspore tetrad formed by meiotic divisions
(D) Pollen grains develop from microspores
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The enzyme that is used to isolate DNA from a bacterial cell is :

Identify the enzyme that is used to clarify fruit juices before bottling.

Antiseptics and disinfectants either kill or prevent growth of micro-organism. Identify which of the following statements is not true?
(A) Disinfectants harm the living tissues.
(B) A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant.
(C) Chlorine and Iodine are used as strong disinfectants.
(D) Dilute solution of boric acid and hydrogen peroxide are antiseptics
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Which one of the following 1 molal aqueous solutions will show maximum freezing point depression?

The greatest integer function \(f: R \rightarrow R\) given by f(x) = [x] is:

Solution of \(\frac{d y}{d x}=\left(1+x^2\right)\left(1+y^2\right)\) is :

The osmotic pressure of a solution prepared by dissolving \(5 0 ~ m g\) of H2SO4 in 2 liters of water at \(2 5 ^{ \circ } C\) will be

Identify transition metal complexes which are not octahedral in shape.
(A) \(\text{[Co(NH}_3)_6\text{]}^{3+}\)
(B) \(\text{[Ni(CO)}_4\text{]}\)
(C) \(\text{[CoCl(NH}_3)_6\text{]}^{2+}\)
(D) \(\text{[CoCl}_2\text{(NH}_3)_4\text{]}^{+}\)
(E) \(\text{[PtCl}_4\text{]}^{2-}\)
Choose the correct answer from the options given below :