Researchers collect Sample X from an early sheep embryo and Sample Y from the bone marrow of an adult sheep. They test whether each sample can produce red blood cells, white blood cells and nerve cells.
Which statement describes the expected result?
Sample X could form red blood cells, white blood cells and nerve cells; Sample Y could form red and white blood cells but not nerve cells.
Sample X and Sample Y could each form red and white blood cells, but neither could form nerve cells.
Sample X and Sample Y could each form red blood cells, white blood cells and nerve cells.
Sample X could form red blood cells, white blood cells and nerve cells; Sample Y could form red blood cells but not white blood cells or nerve cells.
194 exam-style questions on OCR GCSE Biology 2.1 Supplying the cell, covering 2.1.1 Transport across cell membranes, 2.1.2 Mitosis and the cell cycle, 2.1.3 Importance of cell differentiation, and 2.1.4 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.