Cell Division - Mitosis

Question	Answer
Why are new cells made in mitosis?	For growth and repair
How many copies of each chromosome does each body cell normally have?	2
How many pairs of chromosomes does a human cell have?	23
When a body cell divides through mitosis, the new cell is _________ to the original	Identical
How are the DNA in a cell that isn't dividing?	Spread out in long strings
What happens to the DNA in a cell when it gets the signal do divide?	The DNA duplicates itself and forms X-shaped chromosomes
What happens to the chromosomes when it duplicates itself?	They line up in the center of the cell and cell fibres pull the two arms of each chromosome apart to opposite sides of the cell
What happens after the duplicated chromosomes are pulled apart?	Membranes form around each set of chromosomes to form 2 new nuclei
What is the last stage of mitosis	The cytoplasm divides
What form of reproduction uses mitosis?	Asexual
What doesn't occur in asexual reproduction?	variation

Resource summary

	Created by francesca graham about 8 years ago