Hypertonic solution, such as increased salt (NaCl) from diet, or from hyperglycemia as in uncontrolled diabetes.
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.
They are called transmission electron microscopes.
