Human body cells contain genetic material.
Complete the sentences.
The nucleus of a human body cell contains thread-like structures called ............................... .
These structures are made of ............................... molecules.
Each one carries a large number of genes.
In body cells, these structures are normally found in ............................... .
Figure 1 shows a young plant. Four parts of the plant are labelled A, B, C and D.
Cells are dividing rapidly by mitosis in two of the labelled parts of the plant.
Give the two letters.
Name the plant tissue found at these two parts that contains stem cells.
Stem cells can be taken from the bone marrow of an adult human.
What is meant by a stem cell?
Name one type of cell that stem cells from adult bone marrow can form.
