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| Pregunta | Respuesta |
| What is a gene? | A gene is a short piece of DNA that codes for a specific protein.You have genes for hair structure,eye colour,enzymes an every other protein in our body. |
| Cell membrane? Cytoplasm? | Controls what enters and leaves the cell, eg oxygen,carbon dioxide,glucose. Jelly-like substance that fills the cell - many reactions take place here. |
| Nucleus? Mitochondria? | A large structure that contains DNA instructions for the building and working of the cell. (Single mitochondrion) - tiny structures where respiration takes place, releasing energy for cell processes. |
| What are bacterial cells? | Bacteria have a simple cell structure.Like animal and plant cells, they have a cell membrane surrounding the cytoplasm.but they do not have a nucleus. |
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