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Two parents are crossed and the genotypic ratio is 1:1 while the phenotypic ratio was 1:0. Does this make the both parents Heterozygous?
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- JazSincLv 75 years ago
No, assuming classic Mendelian dominant / recessive.
GG x Gg => GG Gg GG Gg
In this cross, one parent is homozygous dominant and the other parent is heterozygous. The genotype ratio for offspring is 1 GG : 1 Gg
and the phenotype ratio is 100% green pods and 0% yellow pods.
(Your teacher probably does not want to hear about small sample size.)
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