B2.7 Cell division and inheritance
- Created by: Elise-741
- Created on: 01-05-17 17:37
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- Cell division and inheritance
- In the nucleus of a cell there are 23 pairs of chromosomes. Each chromosome is made from DNA twisted in a double helix. A gene is a small section of DNA
- Mitosis
- Makes new cells for growth and repair
- Used for asexual reproduction
- E.g. strawberry plants as the offspring are genetically identical
- Process...
- Cell reproduces itself by splitting to form two identical offspring
- Meiosis
- Used for sexual reproduction
- Process...
- Produces cells which have half the normal number of chromosomes
- B2.7 Genetic Definitions
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