Which of following are homologous pair of chromosomes?

Question

Which of the following would be considered a homologous pair of chromosomes and why? Asterisks = centromeres Circle ALL that apply.

A.) human chromosomes X and Y

B.) Mouse chromosome one and human chromosome one

C.) ----A---B---C--*-D---E---F---- and --a---b---c---*---d---e---f---

D.) ---A----B---C--*--D---E---F--- and --A---B---C---*---d---e---f---

Answer 1

C and D definitely... I can't remember whether or not the s*x chromosomes are technically homologes or not.  They get paired, but they contain different genetic information.