Cell Divison

Question 1

Describe the 3 stages of the cell cycle…

Answer 1

1) copy: two copies of chromosomes and internal cell structures
2) mitosis: copies of chromosomes move and form two nuclel
3) Split: cytoplasm and cell membranes split to make two identical cells

Question 2

What happens to chromosomes during mitosis?

Answer 2

Replicate into daughter cells

Question 3

Why is the cell cycle important?

Answer 3

It allows organisms to survive

Question 4

What is a embryonic stem cell? And adult stem cell and where are they found

Answer 4

Stem cells are cells that have not undergone differentiation ie hasn’t become specialised so have potential to turn into any kind of cells
Found in bone marrow

Question 5

3 Uses of a stem cell…

Answer 5

• replacing faulty blood cells
• making insulin producing cells
• making nerve cells

Question 6

Explain the process of therapeutic cloning…

Answer 6

Therapeutic cloning could produce stem cells with the same genetic make-up as the patient. The technique involves the transfer of the nucleus from a cell of the patient, to an egg cell whose nucleus has been removed. Stem cells produced in this way could be transferred to the patient.