Expression of Biological Information

The Central Dogma of Biology stated as

• Protein→RNA→DNA

• RNA→DNA→protein

• DNA→protein→RNA

• DNA→RNA→protein

State the model used in DNA replication

• Dispersive

• Conservative

• Semi-conservative

When does DNA replication occur?

• S phase of interphase

• Transcription process

• G1 phase of interphase

• Elongation phase

Which of these proteins involved in DNA replication?

• Single-stranded binding protein

• Helicase

• RNA polymerase

• Promoter

• Topoisomerase

Name the strand that replicated continuously toward replication fork

• Okazaki Fragment

• Lagging strand

• Leading strand

• Antisense strand

Name the bond formed by DNA ligase

• phosphorus bond

• peptide bond

• ester bond

• phosphodiester bond

State the direction of new strand formation in DNA replication

• 5'→3'

• 3'→5'

Name the strand that been used by DNA polymerase or RNA polymerase to attach complementary bases during DNA replication or Transcription

Which experiment proved that DNA replication is semiconservative replication?

• Experiment of Beadle and Tatum

• Experiment Meselson and Stahl

• Experiment of Harshey an Chase

• Experiment of Avert, MacLeod and McCarty

How absence of topoisomerase affect DNA replication

• Supercoiling of DNA

• Hydrogen bond reformed between the strand

• Unwinding of DNA strand stopped

• Phosphodiester bond break