Match List-l with List-ll

List-l (Disorders)	List-ll (Features)
(A) Colour Blindness	(I) 45 with 'XO'
(B) Haemophilia	(II) Trisomy of 21
(C) Down's Syndrome	(III) Mutation of certain genes on 'X' chromosome
(D) Turner's Syndrome	(IV) Protein involved in clotting of blood

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Observe the illustration and answer the following question:



Match List I with List II.

LIST I	LIST II
A. Spermatozoa	I. Embedding of sperms
B. Primary spermatocyte	II. Androgen secretion
C. Leydig cells	III. Male gamete
D. Sertoli cells	IV. Diploid cell

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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 micro-organisms in a sample of water and thus, indirectly, BOD is a measure of the organic matter present in the water.
Statins, used as blood-cholesterol lowering agents are produced by -

Arrange the given organs in correct sequence which are involved in life cycle of Plasmodium?
(A) Gut of mosquito
(B) Salivary glands of mosquito
(C) Liver of man
(D) Blood of man
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Which of the following statements are incorrect?
(A) In bacteria, Bt toxin exists as inactive protoxin
(B) Due to alkaline pH in the gut, the toxin is converted into its active form
(C) The toxin is already present in active form in bacteria
(D) The inactive toxin binds to the surface of midgut and causes cell swelling and lysis.
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Which among the following cause pneumonia in human ?
(A) Streptococcus pneumoniae
(B) Wuchereria bancrofti
(C) Haemophilus influenzae
(D) Salmonella typhi
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Arrange the following steps of retrovirus replication sequentially.
A. Production of viral DNA by reverse transcriptase
B. Introduction of viral RNA in host cell
C. Production of new viral RNA by host cell
D. Incorporation of viral DNA into host genome
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The differential equation representing the family of curves \(y=A \cos (x+B)\), where \(A\) and \(B\) are arbitrary constants is :

If \(x=\log t^2\) and \(y=(\log t)^2\) then \(\frac{d^2 y}{d x^2}\) is:

Read the passage carefully and answer the Questions
Carbonyl compounds such as aldehydes, ketones, and carboxylic acids play an important role in the biochemical process of plants and animal kingdom.
Many aldehydes and ketones find applications in dye, perfumery and other industries.
The carbonyl carbon atom is \(s p^2\)-hybridized forming three sigma and one pi-bond with oxygen.
C-O bonds are polar bond due to high electronegativity of oxygen than carbon.
Hence the carbonyl carbon behaves as an electrophilic center and oxygen as a nucleophilic centre.
Primary and secondary alcohols yield aldehydes and ketones respectively upon oxidation with variety of oxidixing agents.
The boiling points of aldehydes and ketones differ from hydrocarbons and ethers.
Aldehydes and ketones undergo nucleophilic addition reaction due to presence of electrophilic carbonyl carbon.
Nucleophile and a proton add across the carbon oxygen double bond.
The starting compound (Y) in the following reaction is
\(Y \xrightarrow{\text { axidation }} \text { aldehyde } \xrightarrow{\text { oxidation }} \text { carboxylic acids }\)

De Vries gave his mutation theory on organic evolution while working on-

There are four capacitors: \( C_1, C_2, C_3 \) and \( C_4 \) with equal capacitance \( C_0 \).
(A) for capacitor \( C_1 \) area of the plates is doubled
(B) for capacitor \( C_2 \) distance between the plates is tripled
(C) the capacitor \( C_3 \) is filled completely with a material having dielectric constant K = 3
(D) for capacitor \( C_4 \) there is no change
If the capacitors are arranged in decreasing order of their capacitances, then choose the correct answer from the options given below:

The points on the curve \(2 x=y^2\) which are nearest to the point \((5,0)\) lie in
A. I Quadrant
B. II Quadrant
C. III Quadrant
D. IV Quadrant
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