What is a chromosome?
It is a cell that is made of DNA
How many pairs of chromosomes do humans have?
23
What is mitosis?
a type of cell division that results in two daughter cells.
what are stem cells?
they are undifferentiated cells that divide to make different types of cells.
where are stem cells found?
human embryos e.g bone marrow
what are stem cells from human embryos called, that can make all types of cells?
embryonic stem cells.