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Description
Flashcards by Adam Collinge, updated more than 1 year ago
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Created by Adam Collinge
about 11 years ago
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| Question | Answer |
| What are the differences in species called? | Variation within a species |
| What two types of variation are there? | 1) Genetic 2) Environmental |
| What causes genetic variation? | The combining genes of two parents |
| Give three characteristics that can only be decided by genes. | 1) Eye colour 2) Blood group 3) Inherited disorders |
| How do animals and plants get characteristics from their parents? | They inherit the genes. The genes are passed on in sex cells (gametes) which the offspring develop from. Most animals and plants get some genes from the mother and some from the father |
| What can also influence characteristics? | The environment organisms live and grow in |
| How does environmental variation occur? | Any changes that has happened to an organism, due to the conditions in the environment, e.g lack of light may give a plant yellow leaves |
| What are most characteristics due to? | Genes and the Environment |
| Give four variations that may occur from both genes and the environment. | 1) Body weight 2) Height 3) Athletic 4) Colour of teeth |
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