1624893
| Question | Answer |
| What does cell division allow our cells to do? | Survive and grow |
| How many pairs of chromosomes are there in the human body? | 23 |
| How many copies of each chromosome does the human body have? | 2 |
| Where do the two chromosomes in each pair come from? | One from the mother One from the father |
| When a body cell divides, are the new cells identical to the original cell? | Yes - the new cells are identical to the mother cell |
| When the new cells made are identical to the original, what is this type of cell division called? | Mitosis |
| What do plants and animals use mitosis for? | To grow and to replace cells that have been damaged |
| How is the DNA spread out in cells that are not dividing? | In long strings |
| What form does DNA take when it is copied and duplicated? | X-shaped chromosome - each are is an exact replicate of the other |
| Where do the chromosomes line up before they are divided? | At the centre of the cell |
| What pulls the X-shaped chromosomes apart? | Cell fibres |
| Where do the two arms of the X-shaped chromosome go when they are separated? | To opposite sides of the cell |
| What forms around each of the sets of chromosomes? | Membranes |
| What do the membranes become? | The nuclei of the two new cells |
| What divides to create two new cells? | The cytoplasm |
| What is asexual reproduction? | A type of reproduction from which new organisms are made from a single organism |
| Does asexual reproduction use mitosis? | Yes - some organisms, such as strawberry plants, form runners in this way which become new plants |
| Do the offspring in asexual reproduction by mitosis have the same genes have the original cell? | Yes. There is no variation |
| CREDITS | CGP GCSE Additional Science Exam Board: AQA Higher Level Revision Guide All questions are reworded - not direct from the book. |
Want to create your own Flashcards for free with GoConqr? Learn more.