Short DNA primers that RNA polymerase extends into mRNA

Short RNA primers that DNA polymerase extends

Proteins that bind to single-stranded DNA regions

Lipid membranes that wrap the replication fork

Replication

AP Biology· difficulty 3/5

Primase synthesizes

Explanation

DNA polymerase requires a free 3'-OH to add to; primase lays down a short RNA segment to provide that starting point.

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