Test cross in plants or in Drosophila involve | vedclass

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(C) The correct answer is $C$. Test cross is performed to determine the unknown genotype of an organism showing a dominant phenotype. In a typical tes

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the $F_1$ hybrid with a double recessive genotype

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(C) The correct answer is $C$. Test cross is performed to determine the unknown genotype of an organism showing a dominant phenotype. In a typical test cross,an organism with a dominant phenotype is crossed with an individual that is homozygous recessive for the traits being investigated. This method allows researchers to determine whether the dominant phenotype is homozygous or heterozygous by analyzing the phenotypic ratio of the offspring. For example,in a monohybrid test cross,if the $F_1$ hybrid $(Tt)$ is crossed with a homozygous recessive parent $(tt)$,the resulting offspring will show a $1:1$ ratio of dominant to recessive phenotypes if the parent was heterozygous.

Test cross in plants or in Drosophila involves crossing

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