An F_1 plant has the genotype AABbCC. What is | vedclass

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(A) The given genotype is $AABbCC$. When this plant undergoes selfing $(AABbCC 	imes AABbCC)$,the genes $AA$ and $CC$ are homozygous and will produce

Vedclass · Accepted Answer

$3 : 1$

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(A) The given genotype is $AABbCC$. When this plant undergoes selfing $(AABbCC 	imes AABbCC)$,the genes $AA$ and $CC$ are homozygous and will produce only one type of gamete for these loci ($A$ and $C$ respectively). Only the $Bb$ locus is heterozygous. Selfing a heterozygous $Bb$ plant results in a monohybrid cross ratio of $3:1$ for the phenotype. Since $AA$ and $CC$ are homozygous,they will express the dominant phenotype in all offspring. Therefore,the phenotypic ratio remains $3:1$.

An $F_1$ plant has the genotype $AABbCC$. What is the phenotypic ratio of the $F_2$ generation after selfing this plant?

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