Question:
The order of genes present in a chromosome is as follows.
Which rearrangement represents a paracentric inversion?
The order of genes present in a chromosome is as follows.
Which rearrangement represents a paracentric inversion?
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Check whether the centromere is included: if yes → pericentric; if no → paracentric.
Updated On: Jan 2, 2026
- A
- B
- C
- D
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The Correct Option is B
Solution and Explanation
A paracentric inversion means the inverted segment does not involve the centromere.
Original order: L–M–(centromere)–N–O–P–Q.
Option (B) inverts the N–O–P segment to N–P–O, which lies completely on one side of the centromere.
Hence, (B) represents a true paracentric inversion.
Original order: L–M–(centromere)–N–O–P–Q.
Option (B) inverts the N–O–P segment to N–P–O, which lies completely on one side of the centromere.
Hence, (B) represents a true paracentric inversion.
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