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What halves the number of chromosomes in cells?
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What enables a species to adapt to a changing environment or to colonise new environments?
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What produces cells with the diploid number of chromosomes?
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What enables a species to colonise an area quickly using asexual reproduction?
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When out of control, a cancerous tumour may result in which case?
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the original (parent) cell becomes 2 daughter cells
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Which produces new genetic combinations in individuals
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4 daughter cells are made
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the daughter cells contain half the number of chromosomes as the parent cell
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important for the repair of damaged tissue where new cells must be identical to damaged cells
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daughter cells have the same number of chromosomes as the parent cells
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cell division by reduction
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happens only in gamete producing organs
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the daughter (new) cells are copies of the parent cell
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Which produces clones?
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ensures that the number of chromosomes remains the same in sexually reproducing organisms
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Which is important for the growth of plants and animals?
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Which forms gametes (sex cells)?
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Which produces cells with the haploid number of chromosomes?
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DNA is copied exactly (if there are no mutations)
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chromosomes of the parent cell are duplicated in the daughter cells
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Which increases the variety of offspring - providing a varied stock of individuals?