In prokaryotes, the process of replication is catalysed by the following enzymes. Identify which of the enzymes is best coordinate with the role.

(1) Helicase

 –

Joins the ends of DNA segments

(2) DNA polymerase-I

 –

Synthesises DNA

(3) DNA polymerase-II

 –

Erases primer and fills gaps

(4) Primase

 –

Synthesises RNA primers

 

Subtopic:  DNA Replication: II | DNA Replication |
 66%
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hn-RNA undergoes two additional processing. Out of which, in one of them an unusual nucleotide (methyl guanosine triphosphate) is added to the 5’-end of hnRNA. This is known as

(1) capping

(2) tailing

(3) splicing

(4) termination

Subtopic:  Transcription: IV | Transcription |
 86%
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James Watson and Francis Crick got Nobel prize in the year

(1) 1960

(2) 1962

(3) 1959

(4) 1953

Subtopic:  DNA Double Helix |
 54%
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Polymerisation of which of the following produces Nucleic acids?

(1)Nucleosides

(2)Nucleotides

(3)DNA and RNA

(4)Both 1 and 2

Subtopic:  The DNA |
 68%
From NCERT
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Which of the following is a genetic material in most of the organisms?

(1)DNA

(2)RNA

(3)Both DNA and RNA

(4)Nucleic Acid

Subtopic:  DNA vs RNA as Genetic Material |
 88%
From NCERT
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Which of the following can act as genetic material?

(1)RNA only

(2)DNA only

(3)DNA but not RNA

(4)DNA and RNA

Subtopic:  The DNA | DNA vs RNA as Genetic Material |
 86%
From NCERT
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RNA cannot act as

(1)Adapter molecule

(2)Catalytic molecule

(3)Respiratory substrate

(4)Genetic material

Subtopic:  The DNA |
 86%
From NCERT
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RNA can act as

(1)Adapter molecule

(2)Catalytic molecule as well as Genetic material

(3)Structural molecule

(4)All of the above

Subtopic:  The DNA |
 94%
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How many types of nucleic acids are found in the living system?

(1)1

(2)2

(3)4

(4)3

Subtopic:  The DNA |
 81%
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The new era of genomics started with the determination of

(1) human genome sequence

(2)bacteria genome sequence

(3)discovery of PCR

(4)protein sequencing

Subtopic:  The DNA | Human Genome Project |
 87%
From NCERT
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