A red flower producing snapdragon plant is crossed with a white flower producing snapgragon plant. Resulting F1 generation is crossed with one another to produce F2 generation. This is incomplete dominance of genes.

Q1 What type of a breeding is this? (monohybrid, dihybrid or interspecific)

Q2 Draw a genetic chart to show P, F1 and F2 generations clearly indicating genotypes, phenotypes and generations.

See the answer below

Explanation:

1. This is an example of monohybrid breeding. A monohybrid breeding is the type of breeding that involves parents with a pair of contrasting characters. On the other hand, a type of breeding involving a single gene is what is known as monohybrid breeding.

2. When a red flower snapdragon is crossed with a white flower snapdragon, the resulting offspring are usually pink - an indication of incomplete dominance of the gene responsible for flower color. Assuming the red flower's genotype is AA and that of the white flower is aa:

                       AA      x      aa

                 Aa      Aa      Aa      Aa

F1 genotype = all Aa

F1 phenotype = pink flower

At F2:

                          Aa      x      Aa

                 AA         2Aa           aa

F2 Genotype/phenotype:

       1AA - red color

       2Aa - pink flower color

        1 aa - white flower color.

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