Which of the following are genetically identical?

A) both members of a pair of chromosomes
B) sister chromatids
C) the mother's and the father's chromosomes
D) the mother's and her child's chromosomes
E) the father's and his child's chromosomes

Sister Chromatids

Identical copies of a chromosome connected by a centromere, formed during the replication of DNA in preparation for cell division.

Genetically Identical

Organisms or cells that have exactly the same DNA sequence in every respect, typically resulting from asexual reproduction or cloning.