DNA replication

DNA replication occurs during:

• G1 of interphase

• metaphase of mitosis

• s phase of interphase

• Cytokinesis

The enzyme that separate the double helix of DNA is called:

• DNA polymerase

• salivary amylase

• DNA ase

• Helicase

The enzyme that synthesizes the new strand of DNA is called:

• Primase

• Helicase

• RNA polymerase

• DNA polymerase

The direction of DNA replication is:

• 3’—>5’

• 5’—> 3’

• upward

• I don’t know 🥺

Primase synthesizes a fragment kf RNA called:

• Messenger RNA

• Ribosomal RNA

• Primer

• who cares🥴

Okazaki fragments are ligated by an enzyme called :

• DNA polymerase

• Primase

• Helicase

• Ligase

DNA replication is:

• Conservative

• Semi-conservative

• Dispersive

• Continuous

The 2 strands of the new molecule of DNA obtained at the end of replication are:

• Both parental

• Both new

• made up of new and parental fragments each

• 1 parental and one new

If the parental strand is : AATCCGAT, the new strand will be:

• AAUCCGAU

• UUAGGCUA

• TTAGGCTA

• AATCCGAT

Lagging strand is the :

• Continuous strand

• Parental strand

• New strand

• Discontinuous strand