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A cross is made between a red flowering and a white flowering plant. The F1 is a uniform pink, but in the F2, ¹/16 of the plants have white flowers, ¹/16 have red, and the rest have varying shades of pink to red. How many genes are estimated to be affecting the trait?

Answer :

3 genes are estimated to be affecting the trait. Another important tool created by Gregor Mendel is the test cross. A test cross is a genetic experiment that involves crossing a homozygous recessive organism having a dominant phenotype with an unidentified genotype (and phenotype).

The genotype of an organism is the particular arrangement of alleles for a particular gene. As an example, the genotypes for the flower-color gene in the pea plants above were red-red, red-white, and white-white. The physical representation of an organism's allelic combination is called a phenotype.

[tex]\frac{1}{64}[/tex] is one of the extreme phenotypes, [tex]\frac{1}{4^{n} }[/tex]=[tex]\frac{1}{64}[/tex]= [tex]\frac{1}{4^{3} }[/tex]

Thus by the law of exponents: n=3

To learn more about phenotypes click on the below link:

https://brainly.com/question/902712

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