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There are ___ stop codons

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the proof for the triplet code came from the experiments conducted by

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George Gamow rgues the existence of only__ codons

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The no. of adenylate residues added during tailing is

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splicing is a process where

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Match the following

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which of the following is true : In bacteria a. mRNA requuires no post-processing b.translation may proceed alongside transcription c.transcription and translation take place in the same compartment d.

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RNA polymerase can independently catalyse

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The substrate for RNA polymerase is

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___ plays structural and catalytic role during translation

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which of the following is true: a. inheritance of a character is regulated by both promoter and regulatory sequences b.regulatory genes always code for a protein in order to control gene expression c. introns are present only in eukaryotes d.DNA sequence coding for tRNA or rRNA may not be necessarily called a gene

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presence of intervening regions between the coding regions of DNA is the characteristic of a

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Eukaryotes are generally while prokaryotes are _

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regulatory sequences are present ___ with respect to the promoter

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__ binds in the promoter region

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the location of the promoter gene in a transcriptional unit is

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write the corresponding RNA sequence for 3' ATGCATG 5'

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_ is called the template strand and is called the coding strand

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the transcription unit in DNA is defined by

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if transcription involved both the strands of DNA

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During transcription

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DNA---->RNA is called

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Which of the following is true: Replicatiion a. can originate at only specific points b.canbe inititated by DNA polymerases c.takes place at the S phase

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In replication, strand is continuous and is discontinous

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the DNA dependent DNa polymerases act from

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the newly synthesised discontinuous fragments of DNa are acted upon by

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the procoess of repplication is a. fast b. accurate c. energetically demanding d. discontinuous on both strands

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the average rate of replication is

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to prove that the DNA in the chromosomes replicate semiconservatively, the experiment was carried out using

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the time taken for Ecoli to divide is

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The following is the test-tube contaning DNA from Meeselson and Stahl experiment. Find out what a,b and c could be:

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In the experimental proof of the replication model of DNA, the radiolabelled DNA was seperated from the non-radiolabeled ones by

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In the experimental proof of the replication model of DNA, the medium contained

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the experimental proof of the replication model of DNA was carried out by

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the model of replication proposed by Watson and crick was called

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As a result of DNA replication, in the new DNA molecule -

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the stabiliy of DNA over RNA and the mechanism of DNA repair can be explained in the light of

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RNA acts as

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__ was the first genetic material

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storage of genetic information is best handled by and the transmission of genetic information is best carried out by _

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in the experiment by the Hershey and Chase, the steps in order are

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in the experiment by the Hershey and Chase, the supernatant contained _ and the cell extract contained __

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the natural selection of the DNA as genetic material over RNA could be due to a. stablity of DNA over RNA b. rate of mutation for DNA being slower c. complementart base piring exclusive to DNA d. presence of thymine over uracil

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the genetic material in viruses is

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A molecule that must be a genetic material must

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the underlying difference that helped Hershey and Chase establish their hypothesis was

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Hershey and Chase carried out experiments with

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the ultimate proof of DNA as the genetic material was substantiated by the work of

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In Avery McLeod and Maclyn McCarty's experiment, __ alone inhibited transformation

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Prior to the work of Oswald Avery, Colin MacLeod and Maclyn McCarty, the genetic material was thought to be

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