A single DNA molecule contains two specific target sites separated by an intervening sequence.If site-specific recombination between these sites causes the intervening sequence to be released as a separate circular DNA molecule containing one target site, then the sites were oriented in
A)opposite directions causing excision.
B)the same direction causing excision.
C)opposite directions causing integration.
D)the same direction causing integration.
E)the same direction causing inversion.

Question

Quizplus · Accepted Answer

When two target sites are oriented in the same direction on a DNA molecule, site-specific recombination can lead to the excision of the intervening sequence as a separate circular DNA molecule.

A Single DNA Molecule Contains Two Specific Target Sites Separated