Which of the following statements regarding primary treatment of sewage water are correct:
A. It is a physical treatment
B. It is based on formation of flocs to trap the particulate matter from the sewage
C. It removes large and small particles through filtration and sedimentation.
D. It removes floating debris by filtration and grit by sedimentation

Which of the following is not a venereal disease?

Arrange the given steps of DNA fingerprinting in sequence.
(A) Transferring of separated DNA fragments on nitrocellulose membrane
(B) Isolation of DNA and digestion by restriction endonuclease
(C) Hybridisation using VNTR Probe
(D) Separation of isolated DNA fragments by Gel Electrophoresis
Choose the correct answer from the options given below :

In the double-stranded DNA, percentage of adenine is 30%. Calculate the percentage of cytosine present in it?

The unequivocal proof that DNA is the genetic material came from the experiments of -

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.
The DNA band appears orange due to -

The enzyme used to treat a plant cell for isolation of DNA is:

Answer the question on basis of passage given below :
P block elements are placed in groups 13 to 18 of the periodic table. Their valence shell electronic configuration is \(ns^2 np^{1-6}\). Group 16 of the p block elements are known as the group of chalcogens having \(ns^2 np^4\) as their general electronic configuration. They exhibit number of oxidation states but the stability of \(- 2\) oxidation state decreases down the group. They are sometimes also known as group of chalcogens as the name is derived from the Greek word for brass and points to the association of sulphur and its congeners with copper. Their ionisation enthalpy decreases down the group. Oxygen shows anomalous behaviour due to its small size and high electronegativity.
What will be the products formed in the following equation?

Identify the correct statements.
(A) The density of nuclear matter is independent of the size of the nucleus.
(B) Nuclear forces are charge independent and are non-central forces.
(C) The nuclides having the same mass number are called isotones.
(D) The mass of a nucleus can be less or more than the sum of the masses of nucleons present inside it.
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Which is known as 'Terror of Bengal'.?

Out of the following half cells, which two half cell combination gives the largest \(E_{\text{cell}}\text{}\) value?
(I) \(A^{3-} \rightarrow A^{2-} + e^-\text{}\) \(E^{\circ} = +1.5\text{V}\)
(II) \(B^{+} + e^- \rightarrow B\) \(E^{\circ} = -0.5\text{V}\)
(III) \(C^{2+} + e^- \rightarrow C^{+}\) \(E^{\circ} = +0.5\text{V}\)
(IV) \(D \rightarrow D^{2+} + 2e^-\text{}\) \(E^{\circ} = -1.5\text{V}\)
Choose the correct answer from the options given below:

Identify the correct sequence of events during menstrual cycle?
(A) Next cycle begins
(B) Proliferative phase
(C) Menstruation
(D) Secretory phase
Choose the correct answer from the options given below:

Match List-I with List-II

List-I	List-II
(A) Electric Field	(I) [ LTA ]
(B) Electric Flux	(II) \( [ L^2 ] \)
(C) Electric Dipole Moment	(III) \( [ M L T^{-3} A^{-1} ] \)
(D) Area Vector Element	(IV) \( [ M L^3 T^{-3} A^{-1} ] \)

Choose the correct answer from the options given below :