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7 Cards in this Set
- Front
- Back
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What are the two types of variation?
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Genetic and Environmental.
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Name four inherited unaffected by environment.
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Eye colour, Hair colour, Blood group, inherited diseases.
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Name four environmental factors.
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Body weight, Body height, skin colour, condition of teeth.
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In what part of the cell are chromosones found?
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In the cell nucleus.
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What do chromosones contain?
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Genes.
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How many cells does the human cell nucleus contain?
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23 pairs (46).
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What is a mutation?
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It's a change in a gene, DNA or the number of chromosomes in a cell which leads to genetic variation.
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