Apomixis is the -

Match List-I with List-II

List-I (Terms)	List-II (Relations/Features)
(A) Homologous organs	(I) Mutation caused speciation
(B) Analogous organs	(II) Retrogressive evolution
(C) Vestigial organs	(III) Convergent evolution
(D) Saltation	(IV) Divergent evolution

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The central dogma was proposed by:

What kind of IUD is Lippes loop?
A. Non-medicated
B. Copper releasing
C. Zinc releasing
D. Hormone releasing E. Medicated IUDs
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The rate of biomass production is called productivity. It is expressed in terms of -

Bacillus thuringiensis produces proteins (Bt toxin) that kill certain insects.
Identify the correct statements.
(A) Bt toxin protein exists as an inactive form (protoxin) in Bacillus
thuringiensis.
(B) Bt toxin protein exists as an active form toxin in the insect gut.
(C) The alkaline pH of the gut of an insect solubilize the toxin and converts
in an inactive form.
(D) The toxin is coded by a gene crylac named cry.
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Which one of the followings is not a common mechanical barrier method for birth control?

In a Wheatstone Bridge, all the four arms have equal resistance r. If the resistance of the galvanometer arm is also equal to r, the equivalent resistance of the combination will be

Which of the following is incorrect about chemical adsorption ?

Which one of the following reactions is given by ozone (\(O_3\))?

Read the passage carefully and answer the questions
Replacement of a hydrogen atom in a hydrocarbon by an alkoxy or carboxyl group yields a class of compounds known as ethers. Ethers are classified as symmetrical or unsymmetrical on the basis of groups attached to the oxygen atoms. Diethyl ether, a symmetrical ether, has been widely used as an inhalation anesthetic. Ethers can be prepared by acid catalyzed intermolecular dehydration of alcohols and Williamson's synthesis. Acid catalyzed dehydration of alcohols is not generally preferred as it gives a mixture of elimination and substitution products. In Williamson's synthesis, an alkyl halide is allowed to react with sodium alkoxide. Ethers containing substituted Alkyl groups may also be prepared by this method. The C-O bond in ether is weakly polar and is cleaved under drastic conditions with excess of hydrogen halides. In electrophilic substitution, the alkoxy group deactivates the aromatic ring and directs the incoming group to ortho and para positions.
When ethanol is dehydrated in the presence of H₂SO₄, at 443 K and 413 K respectively, the products formed are

Match List-l with List-II

List-l (Compound Name)	List-II (Boiling Point)
(A) \(CH_3CH_2OH\)	(I) 373K
(B) \(CH_3OCH_3\)	(II) 348K
(C) \(H_2O\)	(III) 351K
(D) \(CH_3CH_2OCH_2CH_3\)	(IV) 248K

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Which of the radiation of sun light is used as heat energy?