参考答案:
Similarities on both strands. (“compare” – max 3 points):
DNA polymerase III adds complimentary DNA nucleotides in DNA replication
DNA polymerase III adds DNA nucleotides in a 5’ to 3’ direction.
DNA primase adds RNA primers to initiate replication.
DNA polymerase I removes primers/replaces RNA primers with DNA.
Differences (“contrast” – max 3 points)
One RNA primer is needed to initiate replication on the leading strand and many primers are needed on the lagging strand.
Leading strand is replicated continuously and lagging strand is replicated discontinuously.
Okazaki fragments are only produced on the lagging strand.
Okazaki fragments are joined/phosphodiester bonds formed by DNA ligase
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