Answer:
Add comparative anatomy and it should be right.
Explanation:
During metaphase, the cell's chromosomes align themselves in the middle of the cell through a type of cellular "tug of war." The chromosomes, which have been replicated and remain joined at a central point called the centromere, are called sister chromatids.
Answer:
an exchange of homologous segments between homologous chromosomes.
Explanation:
Crossing over happens during meiosis, during this process the two homologous chromosomes cross over each other, resulting in the exchange of genetic information giving rise to a mixture parental genetic materials.
