Biology · Molecular Biology
Consider a bacterial circular chromosome undergoing replication. If DNA polymerase synthesizes DNA exclusively in the 5' to 3' direction, requiring a primer, and replication occurs such that one continuous leading strand moves forward while Okazaki fragments (a, b, c) are formed sequentially behind the moving fork as the replication bubble expands in only one direction, this model depicts a:
- 1bidirectional mode of replication wherein synthesis of the Okazaki fragment marked 'c' occurs prior to those marked 'a' and 'b'
- 2bidirectional mode of replication wherein synthesis of the Okazaki fragment marked 'a' occurs prior to those marked 'b' and 'c'
- 3unidirectional mode of replication wherein synthesis of the Okazaki fragment marked 'c' occurs prior to those marked 'a' and 'b'✓
- 4unidirectional mode of replication wherein synthesis of the Okazaki fragment marked 'a' occurs prior to those marked 'b' and 'c'
Correct answer
unidirectional mode of replication wherein synthesis of the Okazaki fragment marked 'c' occurs prior to those marked 'a' and 'b'
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