Translocation has taken place, you can tell by the rearrangement of nonhomologous chromosomes.
Depth, flow, temperature, and chemistry of overlying water
A DNA molecule consists of two strands of nucleotides twisted together to form a double helix. The sugar-phosphate backbone is found on the outside of this helix and the bases are found braching towards the middle. Hydrogen bonds join the thenitrogenous bases and hold the two strands together.
Therefore your answer is sugar and phosphate.