In Bt cotton plant, the insecticidal protein encoded by the genes cry1AC and cry IIAb control -

Match List I with List - II. -

List – l (Terms)	List – II (Linked to)
(A) Divergent evolution	(l) Branching descent
(B) Convergent evolution	(II) Geographical habitats
(C) Adaptive radiation	(III) Analogous structures
(D) Natural selection	(IV) Homologous structures

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Colostrum secreted by mother is rich in:

Match List - I with List - II.

List - I	List - II
(A) Sexually transmitted disease	(I) Assisted reproductive technology
(B) Intra-uterine devices	(II) Detection of genetic disorder
(C) In-vitro fertilization	(III) Contraception method
(D) Amniocentesis	(IV) AIDS

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Observe the figures and answer the question.

The floating cover of bio-gas plant is usually made-up of _________.

Three cells grouped together at the micropylar end and constitute ___________ in the embryo sac.

DNA fingerprinting works on the principle of

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 oxidizing 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.
Formalin which is used to preserve biological specimen is an aqueous solution of

Which one of the followings is not a feature of insecticidal protein crystals formed by Bacillus thuringiensis: -

A parallel plate air capacitor has a capacitance C. When it is half filled with a dielectric of dielectric constant 5, the percentage increase in the capacitance will be

Arrange the following sets of compounds in order of their increasing boiling points.
A. Pentan-1-ol
B. Butan-1-ol
C. Butan-2-ol
D. Ethanol
E. Propan-1-ol
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If 'n' identical resistors, each of value 'R' are first connected in series to a battery of emf 'E' and internal resistance 'R', the current drawn is 'I'. Now if they are connected in parallel, then the current drawn is '5 I'. The value of n is

Match List-I with List-II

List-I	List-II
(A) Angle between \(\hat{i}-2 \hat{j}+3 \hat{k}\) and \(2 \hat{i}+\hat{j}\)	(I) \(\cos ^{-1}\left(\frac{2}{\sqrt{18}}\right)\)
(B) Angle between \(\hat{i}+\hat{j}+2 \hat{k}\) and \(2 \hat{i}+2 \hat{j}+4 \hat{k}\)	(II) 0
(C) Angle between \(2 \hat{i}-\hat{j}+\hat{k}\) and \(\hat{i}+\hat{j}+\hat{k}\)	(III) \(90^{\circ}\)
(D) Angle between \(\hat{i}+\hat{j}-\hat{k}\) and \(\hat{i}+\hat{j}+\hat{k}\)	(IV) \(\cos ^{-1}\left(\frac{1}{3}\right)\)

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