What is a defining characteristic of embryonic stem cells?
They can differentiate into almost any type of specialized cell.
They carry oxygen around the body.
They do not contain genetic material.
They are only present in fully grown adults.
130 exam-style questions on OCR GCSE Biology 1.1 Cell structures, covering 1.1.1 Viewing cells with light microscopes, 1.1.2 Sub-cellular structures and functions, and 1.1.3 Electron microscopy and resolution. Each one has a worked solution and a mark scheme showing where the marks go.