human-late-prophase-karyotypes-have-about-2000-visible-g-bands-the-human-genome-

Question

Which of the following statements regarding balanced reciprocal translocations is incorrect?

Accepted Answer

they result in a gain or loss of genetic material.

Answer

it occurs with the displacement of the end regions of the chromosomes.

Answer

are usually harmless, as they do not result in a gain or loss of genetic material.

Answer

none of these.