Biology for IGCSE & O level - Inheritance (Section 7 - No. 38)
Which of the following is/are true about the structure of DNA? (Select all that apply)
It is a single-stranded molecule.
It contains the base uracil.
It has a double helix structure.
It contains the base thymine.
Vysvětlení
DNA is a double helix and contains thymine. RNA is single stranded and contains uracil.