Q1 · Difficulty 1/3
DNA has the shape of a:
- single strand
- flat sheet
- sphere
- double helix
Show answer & explanation
✓ Answer: D — double helix
DNA is a double helix.
8 mixed-difficulty practice questions in the style of real WJEC GCSE papers — answers, mark-scheme-style explanations, and the official exam structure all on one page.
Take a Mini Mock →Mixed-difficulty questions from across the Combined Science (Double Award) syllabus. Tap "Show answer" after each to check yourself.
DNA has the shape of a:
The unit of energy is the:
The unit of power is the:
The green pigment that absorbs light is:
Which structure controls what enters and leaves an animal cell?
The maximum displacement of a wave from rest is the:
A feature that helps an organism survive in its environment is an:
The unit for amount of substance is the: