The chromosomal mutation depicted in this image is best described as ______.

Question

BlackTom AI · Accepted Answer

The problem asks to identify the chromosomal mutation shown in the image.
First, observe the depicted chromosomes: two separate chromosomes exchange terminal segments with each other, resulting in swapped bands between the two chromosomes. This pattern is characteristic of a reciprocal translocation, where segments from non-homologous chromosomes are exchanged without a total loss or gain of genetic material (balanced rearrangement).
Consider alternate chromosomal mutations conceptually:
- Deletion would involve loss of a chromosome segment, not an exchange between chromosomes.
- Duplication would involve a repeated segment within a chromosome, not an inter-chromosomal swap.
- Inversion would involve the reversal of a segment within the same chromosome, not movement to a different chromosome.
- Reciprocal translocation clearly describes the mutual exchange of segments between two chromosomes, which matches the visual evidence in the image.
Thus, the mutation shown is best described as a reciprocal translocation mutation, as it depicts mutual exchange of chromosome segments between non-homologous chromosomes.

APBIO141-031 with labs 15.01 to 15.03 - Video Quiz

The chromosomal mutation depicted in this image is best described as ______.

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