What are the main differences between the structures of DNA and RNA? Select all true statements.

In the cell, DNA usually has a double$-$stranded helical structure, while RNA is usually a single$-$strand

DNA has uracil instead of thymine, while RNA has adenine instead of guanine

RNA has an OH at the $2\text{'}$ position in its sugar group while DNA has an H at that position

DNA has a different type of phosphate group in its nucleotides compared to RNA

DNA is less stable than RNA