variation in phenotype
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Last updated 10:33 AM on 10/26/25
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5 Terms
1
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what is a mutation ?
a sudden change to genes & chromosomes that may or may not be passed on to the next generation
2
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what is meiosis?
produces new combinations of alleles before they're passed into the gamete - all of which are therefore different
3
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what is random fertilisation of gametes ?
in sexual reproduction this produces new combinations of alleles - therefore offspring are different to parents
4
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causes of genetic variation ?
mutations
meiosis
random fertilisation of gametes
5
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examples of environmental variation ?
poor light
nitrates
pH
diet
parental influence
Note 
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