Which of the following is NOT a potential type of abnormality in chromosome structure?
a) deletion: when a sequence of genetic information is taken out of a chromosome
b) duplication: when a portion of a chromosome is repeated resulting in the chromosome containing additional genetic material
c) homologous exchange: when two homologous chromosomes exchange information equally
d) inversion: when part of a chromosome flips and reinserts in the opposite orientation on the same chromsome
e) All of the above are potential causes of abnormalities in chromosomal structure.
Ans: c) homologous exchange: when two homologous chromosomes exchange information equally
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