Recent questions tagged aipmt

What is SDS and its use?

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What is REBASE ?

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In its polyadenylated form, RNAI is highly unstable and is therefore unable to prevent formation of ______ (RNAII) , the primer for plasmid DNA synthesis.

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E. coli used as hosts for colEl plasmids carry a wild-type version of a gene known as ------ which codes for poly(A) polymerase.

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plasmid vectors which carry the origin of DNA replication from the genome of a single-stranded filamentous bacteriophage such as M13 or f1 are called

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Insertional inactivation is not possible with pUC vectors, which carry only one antibiotic resistance gene that is -

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At the origin of replication, synthesis of plasmid DNA depends on the formation of which persistent complex?

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The plasmids which replicate under stringent control require ongoing synthesis of which protein for replication ?

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When the bacterial cells are exposed to chloramphenicol, then the content of which DNA increases ?

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Plasmids, which replicate in a "relaxed" control, continue to duplicate , (a) when protein synthesis is inhibited by amino acid starvation or by (b) addition of an antibiotic such as chloramphenicol.

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Protein synthesis is required for (a) initiation of each round of host DNA synthesis but (b)not for plasmid replication.

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Plasmid pSC101 are said to replicate under -

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X-gal substrate is also known as -

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Bacterial colonies containing non recombinant plasmids are able to hydrolyze non fermentable, chromogenic substrates called as -

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When a segment of foreign DNA is cloned into the multiple cloning site of pUC vectors, the sequence encoding the amino-terminal fragment is disrupted. Thus, Bacterial colonies containing recombinant plasmids inhibit-

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pUC vectors and many of their derivatives carry a short segment of E.coli DNA that contains the regulatory sequences of the lacZ gene which codes for

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Which genetic unit of plasmid is defined as the smallest piece of plasmid DNA that is able to replicate autonomously and maintain normal copy number

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Which the given genetic terms refers to, a gene that masks the expression of the other ?

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Which of the following is highly soluble in water and solvated entirely by hydrogen bonding ?

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Which of the following is the site of transcriptionally inactive DNA ?

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Which of the following is not required for Rec-A dependent recombination between two DNA molecules ?

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Which of the following is most likely mechanism for the origin of multigene families ?

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Which of the following pairs of compounds are interconvertible in the liver by a single polypeptide chain containing two different catalytic sites ?

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Which of the following properties is common to all cytoskeletal motor proteins (such as kinesins, myosins and dyneins) ?

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Which of the following is an advantage of confocal microscopy over conventional fluorescence microscopy ?

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The rate limiting step of fatty acid synthesis is catalyzed by

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All of the following compounds are capable of forming hydrogen bonds with water except

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The technique used by scientists, Guha and Maheswari to culture haploid plantlets was experimented on which plant species ?

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Indole-3-acetic acid (IAA) belongs to which class of plant growth regulators or hormones ?

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During in-vitro micropropagation, the favorable condition for shoot multiplication would require which growth regulators ?

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In eukaryotes, which is the initiating amino acid ?

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Eukaryotic ribosome has a sedimentation coefficient of 80S with subunits of _______.

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The attachment of an amino acid to a tRNA is catalyzed by which enzyme ?

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Most amino acids in proteins are specified by more than one codon. Therefore, genetic codon is said to be

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During translation, the sequence of an mRNA molecule is read by _____________.

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Each codon is recognized by a triplet of bases, called an anticodon which is present in _____.

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Which of these are termination or stop codons ?

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Which enzyme is able to degrade cellulose that are absent in mammals but are produced by some bacteria, fungi and protozoa ?

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Which genetic disease is caused by an inability to convert galactose to glucose ?

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Sucrose is (a) non reducing sugar and (b) disaccharide.

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In glycolysis, glucose is phosphorylated by ATP to form glucose 6-phosphate and ADP. This reaction is catalyzed by which enzyme ?

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Starch is the mixture of two polysaccharide forms called

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Which bond is formed between the anomeric carbon of the sugar and a nitrogen atom of the base of an ATP molecule ?

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D-glucose and D-galactose differ only in their configuration at C-4, thus called

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Fluid mosaic model of biological membranes was proposed by

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Which bond between the carbon and nitrogen exhibits partial double bond character ?

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Which of the oxygen-binding protein stores the oxygen in the muscles ?

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In fireflies, the generation of a light flash requires activation of luciferin by an enzymatic reaction involving pyrophosphate cleavage of which molecule to form luciferyl adenylate ?

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Flavoproteins in cryptochromes and photolyases also serve as

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NAD and NADP are bound to dehydrogenases in a widely conserved structural motif called the

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