Locus Heterogeneity Can Cause Difficulties in Pedigree Analysis Since

Question

Locus heterogeneity can cause difficulties in pedigree analysis since 
A) the inheritance of only one gene is being analyzed.
B) the inheritance of more than one gene is being analyzed.
C) the cause of the disease may not have a genetic origin.
D) the cause of the disease may have environmental as well as genetic origins.

Accepted Answer

Locus heterogeneity refers to the phenomenon where a particular phenotype (such as a disease) can be caused by mutations in different genes. Therefore, when trying to analyze the inheritance pattern of a disease in a pedigree, it is important to consider the possibility that more than one gene may be involved. This can make the analysis more complicated and difficult to interpret.