Recent questions tagged 2005

Which one of the following represents an ovule, where the embryo sac becomes horse- shoe shaped and the funiculus and micropyle are close to each other -

asked Jul 24, 2018 by pady_1

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Animals have the innate ability to escape from predation. Examples for the same are given below. Select the incorrect example

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1 answer

Carbohydrates, the most abundant biomolecules on earth, are produced by -

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Which one of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain-

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The salivary gland chromosomes in the dipteran larva, are useful in gene mapping because -

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Biodiversity Act of India was passed by the Parliament in the year -

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The catalytic efficiency of two different enzymes can be compared by the -

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1 answer

If mammalian ovum fails to get fertilized, which one of the following is unlikely -

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1 answer

Epithelial cells of the intestine involved in food absorption have on their surface -

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The net pressure gradient that causes the fluid to filter out of the glomeruli into the capsule is -

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One of the most important functions of botanical gardens is that -

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Which of the following is generally used for induced mutagenesis in crop plants -

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1 answer

Which one of the following experiments suggests that simplest living organisms could not have originated spontaneously from non- living matter -

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Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on

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1 answer

Using imprints from a plate with complete medium and carrying bacterial colonies, you can select streptomycin resistant mutants and prove that such mutations do not originates as adaptation. These imprints need to be used -

asked Jul 24, 2018 by pady_1

1 answer

Match items in Column I with those in Column II - Column I Column II s - (A) Peritrichous (J) Ginkgo flagellation (B) Living fossil (K) Macrocystes (C) Rhizophore (L) Escherichia coli (D) Smallest flowering plant (M) Selaginella (E) Largest (N) Wolffia Perennial alga Select the correct answer with the following

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At a particular locus, frequency of 'A' allele is 0.6 and that of 'a' is 0.4. What would be the frequency of heterozygotes in a random mating population at equilibrium -

asked Jul 24, 2018 by pady_1

1 answer

In ornithine cycle which of the following wastes are removed form the blood -

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All of the following statements concerning the Actinomycetous filamentous soil bacterium Frankia are correct EXCEPT that Frankia -

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In a type of apomixis known as adventive embryony, embryos develop directly from the -

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Golden rice is a transgenic crop of the future with the following improved trait -

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Which one of the following pairs in mismatched-

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Which of the following represents the edible part of the fruit of Litchi -

asked Jul 24, 2018 by pady_1

1 answer

In contrast to Annelids the Platyhelminths show

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1 answer

Which of the following statements regarding enzyme inhibition is correct -

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2 answers

G-6-P dehydrogenase deficiency is associated with haemolysis of -

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1 answer

Ectophloic siphonostele is found in -

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During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP -

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2 answers

IUPAC Name of some compounds are given. Which one is incorrect -

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1 answer

The correct sequence of increasing covalent character is represented by -

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1 answer

Aniline in a set of reactions yielded a product

The structure of the product D would be -

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1 answer

Which of the following would have a permanent dipole moment -

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1 answer

Products of the following reaction :is are -

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Which of the following pairs of a chemical reaction is certain to result in a spontaneous reaction -

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1 answer

Which one of the following compounds is most acidic :-

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2 answers

Electrolytic reduction of nitrobenzene in weakly acidic medium gives :-

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1 answer

The main reason for larger number of oxidation states exhibited by the actinoids than the corresponding lanthanoids, is :-

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Which of the following molecules has trigonal planer geometry ;

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1 answer

The correct order in which the O-O bond length increases in the following is :-

asked Jul 24, 2018 by pady_1

1 answer

At $25^oC$, the dissociation constant of a base, BOH, is $1.0\times10^{-12}$ The concentration of hydroxyl ions in 0.01M aqueous solution of the base would be :-

asked Jul 24, 2018 by pady_1

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Which functional group participates in disulphide bond formation in proteins :-

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Which one of the following pair represents stereo isomerism :-

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The surface tension of which of the following liquid is maximum :-

asked Jul 24, 2018 by pady_1

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The energy of second Bohr orbit of the hydrogen atom is $–328\; g\;mol^{-1}$; hence the energy of fourth Bohr orbit would be :-

asked Jul 24, 2018 by pady_1

1 answer

A solution of urea (mol. mass $56\;g\;mol^{-1}$) boils at $100.18^{\circ}C$ at the atomospheric pressure. If $K_f$ and $K_b$ for water are $1.86$ and $0.512\;K g\;mol^{-1}$ respectively , the above solution will freeze at :-

asked Jul 24, 2018 by pady_1

1 answer

The absolute enthalpy of neutralisation of the reaction : $MgO(s)+2HCl(aq)\to MgCl_2(aq)+H_2O(l)$ will be:

asked Jul 24, 2018 by pady_1

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Which amongst the following is the most stable carbocation :-

asked Jul 24, 2018 by pady_1

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In a face –centered cubic lattice, a unit cell is shared equally by how many unit cells :-

asked Jul 24, 2018 by pady_1

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A reaction occurs spontaneously if -

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The aqueous solution containing which one of the following ions will be colourless -

asked Jul 24, 2018 by pady_1

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