Although the law of independent assortment is generally applicable, when two loci are on the same chromosome

Although the law of independent assortment is generally applicable, when two loci are on the same chromosome the phenotypes of the progeny sometimes do not fit the phenotypes predicted. This is due to

A) translocation.
B) inversions.
C) chromatid affinities.
D) linkage.
E) reciprocal chromosomal exchanges.

Although the law of independent assortment is generally applicable, when two loci are on the same chromosome the phenotypes of the progeny sometimes do not fit the phenotypes predicted. This is due to?

Answer: D