savvy2727 savvy2727
  • 11-02-2019
  • Biology
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Genotype ratio of offspring expected when crossing 2 heterozygous parents

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asra44
asra44 asra44
  • 11-02-2019
Heterozygous means that the genotypes is a mixture of genes:
Let’s say that:
Parent one has the gene - Bb
Parent two has the gene Bb

B b
B BB Bb
b Bb bb

Therefore the ratio is:
BB:Bb:bb
=1:2:1
Hope this helps
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