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Viscacha Rat Evolution

APBIO-J2GQ0G

The red viscacha rat has almost twice as many chromosomes as one of its closest relatives, the mountain viscacha rat.

Which of the following mechanisms MOST likely resulted in the evolution of the red viscacha rat?

A

Errors in replication.

B

Errors in meiosis.

C

Environmental adaptations.

D

Unequal crossover.