6.2.3(Dihybrid inheritance
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Last updated 9:25 PM on 6/12/25
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4 Terms
1
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State what is meant by dihybrid inheritence
The inheritance of 2 characteristics controlled by 2 different genes(Extended punnet)
2
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State why dihybrid inheritance may not always occur
Due to sex linkage, autosomal or epistasis
3
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Give an example of a dihybrid cross and show the F2 punnet square, F2 genotypes, Parent phenotypes, F1 genotype, F1 genotype, gamete phenotypes and the ratio of phenotypes
Seed colour and shape:
4
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State the what the F2 genotype ratio always is
9:3:3:1
Note 
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