Question

4.An inversion occurs along part of a chromosome. How does the inversion most likely affect the region in which it occurs?

A. The coding sequence in the region disappears entirely from the cell.
B. The information in the region is read differently during transcription.
C. Recessive alleles in the region become dominant alleles.
D. Multiple frame-shift errors in the region are triggered after translation.

Answer 1

C. Recessive alleles in the region become dominant alleles.

Step-by-step explanation:

• Inversion is a type of mutation that occurs when a single chromosome undergoes breakage and rearrangement. That is a segment of chromosome is reversed from one end to another.

• Inversion may be paracentric where the inversion does not invole the centromere and the breakages occur on a single arm of the chromosome.
• On the other hand, a pericentric inversion occurs when the breakages oxxurs arround the centromere and occurs between two arms of the chromosome.